History Main / FandomRivalry

** Traditional (hand-drawn) animation Creator/{{Disney}} fans vs. CGI Disney and/or Creator/{{Pixar}} fans. Yes, this rivalry does exist, largely because traditional Disney films fell into a DorkAge as Pixar picked up a head of steam in the new millenium, to the point that Disney shut down the traditional unit after ''Disney/HomeOnTheRange'' in 2004. Add to this that the Pixar films have generated a lot more merchandising, theme park attractions, Oscar nominations and wins, etc. than more recent "in-house" efforts have. Ironically, Disney returned to traditional animation thanks to Pixar head John Lasseter encouraging it. Fans cheered the arrival of ''Disney/ThePrincessAndTheFrog'' in 2009... then watched aghast as it was swiftly overtaken at the box-office in favor of Creator/JamesCameron's ''Film/{{Avatar}}'', ''Film/SherlockHolmes2009'' and (most humiliatingly) ''Film/AlvinAndTheChipmunks: The Squeakquel'', so this rivalry is only likely to worsen.[[note]]''Disney/{{Tangled}}'' and its follow-ups have alleviated the worst now, by [[TakingAThirdOption essentially being a classical hand-drawn feature done in CGI]] - and with [[SugarWiki/AwesomeMusic music]] by Music/AlanMenken to boot.[[/note]]
** Another rivalry within the fandom are fans of "classic" Disney vs. fans of "modern" Disney, though the point where "classic" ends and "modern" begins is highly contested. Depending on who you ask, the separation point is either 1967[[note]] the release of ''Disney/TheJungleBook'', Creator/WaltDisney's final film[[/note]], 1971[[note]] the deaths of Disney founders Roy O. Disney and Creator/UbIwerks[[/note]], 1981,[[note]]The release of ''Disney/TheFoxAndTheHound'', the transition film between the first and second generation animators[[/note]] 1985,[[note]]The failure of ''Disney/TheBlackCauldron'', which led to radical changes towards the animation department's film-making approach by newly-installed studio heads Michael Eisner and Jeffrey Katzenberg[[/note]] 1994,[[note]]The release of ''Disney/TheLionKing'' and the end of Disney's Second Golden Age (also the year Katzenberg left)[[/note]] or 1999.[[note]]The release of ''Disney/{{Tarzan}}'' and the end of the Disney Renaissance[[/note]] The point almost always depends on [[NostalgiaFilter when fans were born and/or what films they consider "classic"]] (though for the record, [[WordOfGod Disney itself apparently considers 1985 to be the separation point]] between "classic" and "modern").

** Is currently engaged in a minor one with ''Disney/{{Frozen}},'' due to accusations that Tumblr was ignoring this film in favor of that one and threatened its financial success.
** Also with ''Disney/BigHero6'', due to the fact that both were released in the US about a month apart but ''Big Hero 6'' did much better at the box office. It got fueled even more when ''Big Hero 6'' won an Oscar for Best Animated Feature where ''The Book Of Life'' wasn't even nominated.

* Many ''WesternAnimation/{{Home}}'' and ''WesternAnimation/{{How to Train Your Dragon 2}}'' fans seem to hold a major grudge against ''Disney/BigHero6'', arguing that it's "overrated", "shouldn't have won the Oscar", and that it's "highly predictable".

* Wrestling/{{CMLL}} vs Lucha Libre Interacional/Universal Wrestling Association. Then CMLL vs Wrestling/{{AAA}}. Then both vs IWRG. Sometimes Liga Elite fans join one of the other two against Triple A.

** Or as the Wrestling/{{Cody|Rhodes}}\[[Wrestling/TheYoungBucks Young Bucks]] driven ''All In'' and Wrestling/ChrisJericho's Cruise prove its NJPW, ROH, Impact, Lucha Underground/AAA, WOS & MLW ''[[RivalsTeamUp vs.]]'' WWE. While that list might look long, it could easily be spun into a continuation of the old NWA vs WWF rivalry, even ignoring that the NWA World Heavyweight Title was the belt defended during the main event of ''All In'' and used to legitimize Wrestling/AllEliteWrestling. What's changed is that most of the shows opposed to WWE fan bases swear by [[VestigialEmpire are no longer united by the NWA brand]], so [[WeAreStrugglingTogether the diversity]] of WWE's opposition becomes more readily apparent.

** When Pixar announced ''Coco'', there was a lot of hot debate about whether or not ''Coco'' is a direct ripoff of (some going so far as to claim that Pixar stole the idea from Gutierrez[[note]]Worth pointing out this is an ''incredibly'' unlikely scenario: Pixar only accepts in-house pitches, meaning Gutierrez couldn't have pitched his idea to Pixar even if he wanted to, and Pixar had announced they were interested in doing a Day of the Dead movie as far back as 2012, a good year before this movie was even in production[[/note]]). For what it's worth, [[https://twitter.com/mexopolis/status/632580456823721984 Gutierrez has expressed excitement for the movie.]] There are also a number of fans equally excited.

* In homosexuality-focused genres ({{Yaoi}}, {{Yuri}}, SlashFic), fans who think they should be about actual GLBTQ experiences and issues vs fans who just want to see cute boys/girls boinking.

* Fans vs fans who write FanFiction. If non-fic fans know much about fic-ers they've depicted them as sexually frustrated middle-aged women with too much time on their hands who will pair up anyone with anyone/thing (leading to comments about how "disgusting" fanfic is[[note]]ALL of it[[/note]]). Fic-ers on the other hand bash the rest of the world for "closed minded hate" towards favored characters or ships, equating a dislike of fanfic with the closeted, agoraphobic nerd who won't remove action figures from the original packaging and is anti-fun. Fic-ers have also been known to get slightly miffed whenever a non-fic-er sociologist or anthropologist tries to "understand" this subculture. For the most part though, both groups casually ignore each other under the mantra that the other just doesn't "get it", and fanfiction tends to remain relatively unknown to the average muggle.

* The ''WesternAnimation/TheIncredibles'' fandom developed one with ''TTG!'' when ''WesternAnimation/TeenTitansGoToTheMovies'' was set for a theatrical release a little over a month after ''WesternAnimation/Incredibles2''.

-->--'''Music/WeirdAlYankovic'''- "White And Nerdy"

* {{FandomRivalry/Automobiles}}

* {{FandomRivalry/Film}}

* {{FandomRivalry/Other}}

* {{FandomRivalry/Technology}}

* ''Toys/{{Bionicle}}'' vs ''Toys/HeroFactory'', even though one was the replacement of the other. Bionicle fans hate Hero Factory for replacing Bionicle, and being more simple and childish, while Hero Factory fans think Bionicle is overly complex and doesn't allow room for new fans

** ROH fans became a little more anti WWE after 2015, when WWE started doing several things seemingly just to spite ROH. The main three were actively trying to sign members of the ROH roster, running shows in the same or adjacent venues to ROH, and trying to funnel talent that would otherwise go to ROH to EVOLVE instead. The anti WWE sentiment largely set in because it all started when WWE realized signing Wrestling/KevinSteen didn't let them [[MerchandiseDriven stop ROH from selling Steen dolls]]. In the first case WWE didn't actually get that many wrestlers, but [[WeWinBecauseYouDidnt got enough to have ROH stretching for credible contenders]] to champion Wrestling/JayLethal, which took a lot of heat away from his hot title run, and that's if you're under the impression Wrestling/AJStyles would not have simply ended it as he was being teased to do before it became obvious he finally bit on a WWE offer in December. In the second case ROH's attendance numbers continued to climb anyway, but the gains were [[OvershadowedByAwesome somewhat ignored]] in the face of WWE managing to equal or out draw them with BShow material that often featured guys wrestling in ROH not too long ago. In the latter case, fans were pretty upset about the breakup of The Pretty Boy Killers TagTeam, as Keith Lee left ROH and Shane Taylor to eventually become WWN Champion. On the other hand, some ROH fans were loyal enough to those wrestlers to follow them to WWE or EVOLVE.

Often involves DuelingWorks. Compare InternetBackdraft, ShipToShipCombat. See BrokenBase for when fandoms have civil wars amongst ''themselves''. May involve HypocriticalFandom if a show gets bashed by fans of a rival for having flaws that also exist in the rival show. Contrast FriendlyFandoms. Usually features UltimateShowdownOfUltimateDestiny.

* ''Theatre/SeventeenSeventySix'' versus ''Theatre/{{Hamilton}}'', mostly because the protagonists (UsefulNotes/JohnAdams and UsefulNotes/AlexanderHamilton) absolutely detested each other in RealLife. In spite of the fact that ''Hamilton's'' author, Lin-Manuel Miranda, is a big fan of ''1776'' and cites it as an inspiration for his own show, Hamilfans have been known to disreccomend it just because it stars one of the many guys who hated their guy. (Never mind the fact that neither ''Hamilton'' nor ''1776'' shy away from the fact that both men were hugely flawed and generally gave people ''reason'' to hate them.)

** Or as the Wrestling/{{Cody|Rhodes}}\[[Wrestling/TheYoungBucks Young Bucks]] driven ''All In'' and Wrestling/ChrisJericho's Cruise prove its NJPW, ROH, Impact, Lucha Underground/AAA, WOS & MLW ''[[RivalsTeamUp vs.]]'' WWE. While that list might look long, it could easily be spun into a continuation of the old NWA vs WWF rivalry, even ignoring that the NWA World Heavyweight Title was the belt defended during the main event of ''All In''. What's changed is that most of the shows opposed to WWE fan bases swear by [[VestigialEmpire are no longer united by the NWA brand]], so [[WeAreStrugglingTogether the diversity]] of WWE's opposition becomes more readily apparent.

* Recently, there's been one between ''Theatre/Heathers'' and ''Theatre/MeanGirls'', with the former accusing the latter of being a ripoff.

-->''The only question I ever thought was hard\\

** ROH fans became a little more anti WWE after 2015 when it started doing several things seemingly just to spite ROH, the main three being actively trying to sign members of the ROH roster, running shows in the same or adjacent venues to ROH and trying to funnel talent that would otherwise be in ROH to EVOLVE, largely because it all started when WWE realized signing Wrestling/KevinSteen didn't let them [[MerchandiseDriven stop ROH from selling Steen dolls]]. In the first case they didn't actually get that many wrestlers but did got enough to have ROH stretching for credible contenders to champion Wrestling/JayLethal, which took a lot of heat away from his hot title run, and that's if you're under the impression Wrestling/AJStyles would not have simply ended it, which he was being teased to do before it became obvious he finally bit on a WWE offer in December. In the second case ROH's attendance numbers continued to climb anyway but the gains were somewhat ignored in the face of WWE managing to equal or out draw them with BShow material that often featured guys wrestling in ROH not too long ago. In the latter case, fans were pretty upset about the breakup of the Pretty Boy Killers TagTeam as Keith Lee left ROH and Shane Taylor to eventually become WWN Champion. On the other hand, some ROH fans were loyal enough to those wrestlers to follow them to WWE or EVOLVE.

* Wrestling/{{SHIMMER}} vs Wrestling/{{WSU}} vs SHINE, the three most prominent women's wrestling promotions in the USA. Mainly WSU vs SHINE, as the former lost some ground when its owner's health started to fail and the latter rose up centered around {{exp|y}}ies of the Midwest Militia and Rain's Army, which were best known as WSU groups. And all of them hold women's wrestling fans who only watch WWE in disdain.
* Nowadays its Wrestling/{{WWE}} vs. Wrestling/{{NJPW}} (w/ROH\CMLL to a lesser extent due to their crossovers) vs. Wrestling/LuchaUnderground and occasionally Anthem!Wrestling/ImpactWrestling as a four-way dance.
** Or as the Wrestling/{{Cody|Rhodes}}\[[Wrestling/TheYoungBucks Young Bucks]] driven ''All In'' and Wrestling/ChrisJericho's Cruise prove its NJPW, ROH, Impact, Lucha Underground/AAA, WOS & MLW ''[[RivalsTeamUp vs.]]'' WWE. While that list might look long, it could easily be spun into a continuation of the old NWA vs WWF rivalry, even ignoring that the NWA World Heavyweight Title was the belt defended during the main event of ''All In''. What's changed is that most of the shows opposing fan bases swear by [[VestigialEmpire are no longer united by the NWA brand]], so [[WeAreStrugglingTogether the diversity]] of WWE's opposition becomes more readily apparent.

** On the topic of ''My Little Pony'', one of the earliest battle-lines drawn was Bronies vs. old-time Collectors who collect G1/Tales/G3 toys for the sake of their love for little plastic horses. Many Bronies have nothing but contempt for pre-G4 figures, while said collectors diss G2/G3.5/G4 figures for not looking like horses. Needless to say it's quite rare to find people in these two camps that even talk to each other, much less actually get along.
** Then there's bronies who only collect show-accurate (non-Hasbro made) G4 ponies vs. the other G4 pony collectors. The former complain about how Hasbro's products [[ShowAccuracyToyAccuracy do not look like in the show]] and buy ponies from show-accurate toy licensees like Funko and Build-a-Bear, but never from Hasbro themselves. The latter thinks that the former is completely missing the point of collecting MLP, believing that since the franchise belongs to Hasbro, one should only be buying Hasbro ponies.
** Again, Bronies vs. Filly. Especially heated since many Filly fans are MLP dissidents who abandoned MLP due to the G3.5 ponies' designs.

** Fanfic writers who make extensive use of [[OriginalCharacters OCs]] in their fanfics vs. fanfic writers who see them as a necessary evil at best.

* {{FandomRivalry/Automobiles}}
* {{FandomRivalry/Film}}

* {{FandomRivalry/Other}}

* FandomRivalry/TabletopGames
* {{FandomRivalry/Technology}}

* FandomRivalry/WebOriginal

[[folder:Cars]]
* SUV drivers vs EV or hybrid drivers. The later sees the former as wasteful and self-centered. The former sees the later as whiny and effeminate.
* The Nissan Leaf vs. the Chevrolet Volt, being that they are currently the two main choices for an electric car, the two cars that ranked the highest in safety for 2011, and that the Volt won Motor Trend American Car of the Year while the Leaf won European car of the year, both in 2011.
** There's also the issue of whether or not the Chevrolet Volt counts as an "Electric" car, or if it's a Hybrid. Both sides of the argument point to the combustion generator in the Chevrolet Volt vs the pure battery electric Nissan Leaf, despite both having a pure electric drive train. In the end it boils down to the Leaf driver saying "It's not electric, it's just a stupid hybrid." and the Volt driver replying "Is so electric, and the generator give it a further range while still using less gas then a pure gasoline car would!" That's right. Electric car drivers will argue over where the electricity comes from.
** It's worth noting that the Chevrolet '''B'''olt is a pure battery-powered EV like the Leaf or every Tesla model, while the '''V'''olt is a plug-in hybrid with a gasoline engine, more akin to a Civic Hybrid or a Prius.
** Tesla in general vs. everybody else. They're credited with making the pure battery electric car not just a CoolCar (which the Leaf, Bolt, Volt and Prius are [[SnarkBait decidedly not]]), but something that will out-accelerate most gas-powered ''supercars'' from 0 to 60, on top of being more technologically sophisticated and having far more frequently updated software for the in-car systems than their rivals. However, their emphasis on form over function in some design aspects and their fanbase have drawn them some very unflattering comparisons to Apple, on top of certain car owners insisting that only real cars run on fossil fuels. Software bugs and insecurity concerns have also earned Tesla more than a few detractors.
* Holden vs Ford in Australia - both companies have a long history in the country, and there is also spillover from their rivalry on the racing circuit. The Ford Falcon vs. Holden Commodore rivalry in particular parallels the Ford Mustang vs. Chevrolet Camaro rivalry in the US.\\
Too bad the Australian government killed off their domestic auto industry entirely..
* Harley-Davidson Vs Indian Motorcycles. Vicious when both companies where still around, still exists to some degree among classic motorcycle collectors.
** Also Harleys versus Japanese bikes. The former calls the latter "rice-burners," while the latter says they call them Harleys because they ''[[{{Pun}} Harley]]'' ever run.
* Chevrolet vs. Ford is probably the great granddaddy of automotive rivalries in the US, especially for pickups. Foreign vs. domestic used to start fistfights in the 70s and 80s, but that feud has mellowed a bit over time. A ''bit''.\\
"Foreign" cars are still banned from the parking lot of the headquarters of the United Auto Workers union in Detroit, though what's "foreign" and what's "domestic" has blurred quite a bit in more recent times, particularly with General Motors' penchant for [[MarketBasedTitle rebranding an import with a domestic marque]] - one of the better-known examples being the Pontiac G8/Chevrolet SS actually being an Australian-made Holden Commodore.
** Nothing highlights this rivalry more than the Ford Mustang vs. the Chevrolet Camaro, the latter of which was introduced by General Motors as "a small, vicious animal that eats Mustangs", squarely intended as their competitor in the "pony car" market segment that Ford just created.
** In the southern states of the USA, pickups might as well be a way of life, and Ford vs Chevy vs Dodge rivalries are intense. Each has extensive aftermarket parts catalogs, devoted fans, rabid detractors, and enough fandumb to fill the flatbed of every truck in Texas.\\
Hoping to capitalize on the sales of pickups in the southern states, Toyota built a plant to build its line in San Antonio, Texas. Toyota hoped to make their trucks seem more "genuinely southern" to consumers. Despite good reviews from automotive magazines and critics, the hoped-for cultural shift to accept the Tundra as a "real good ol' boy pickup" hasn't really happened as of 2015, especially after the F-150, Ram, and Silverado all underwent significant quality improvement.\\
But for what it's worth, Toyota's TonkaTough reputation for their pickups has not gone unnoticed in the South; the pre-Tacoma "Pickup" ([[MarketBasedTitle the Hilux nameplate was never used in the US]]) of the '80s and early '90s is in consistent demand on the used market, for those who favor compact pickup trucks over full-size models.
* Pontiac Fiero GT vs. Toyota [=MR2=]. This plays a bit into the American "domestic vs. import" debate, this time over who provided the better mid-engine, two-seat, rear-wheel-drive sporty coupe with a fuel-efficient engine and the most '80s styling one can muster.\\
The Fiero was introduced in 1984 as an economy car, effectively {{Nerf}}ed from its original intent as a high-performance car that would have compromised the Chevrolet Corvette being reintroduced that year, and the Corvette is effectively GM's SacredCow. It wasn't given the intended V6 until the next year on the Fiero GT variant, and the original 1984 models had some faulty engine components used that led to [[EveryCarIsAPinto spontaneous combustion]] that tarnished its reputation despite being fixed in later model years. It also didn't have the intended performance suspension until 1988 - the final year of production, as GM killed the Fiero right as they finally got it right.\\
The [=MR2=], on the other hand, saw much more success over the years with expected Toyota reliability, well-tuned suspension and handling, and actually getting two more generations into the '90s onward. The early [=AW11=] generation even shares the 4A-GE engine with the famed [[{{Manga/InitialD}} AE86]], with an optional supercharger on some models, and the later [=SW20=] generation offered even more power and turbocharger options, [[DifficultButAwesome with additional tendency for snap oversteer that only a skilled driver would correct.]]
* Mitsubishi Lancer Evolution vs. Subaru Impreza WRX STI, obviously. They're high performance rally cars built for the [[UsefulNotes/WorldRallyChampionship WRC]], and having huge fanbases for each side. They're also the ones captured by the tuner markets, and were brought over by their respective makers to the global attention. However, the rivalry ended in 2014 when [[CreatorKiller/AutomoBiles Mitsubishi Motors announced the discontinuation of Lancer Evolution line]] [[AcclaimedFlop due to it being a commercial failure]], [[DivergentCharacterEvolution leaving Subaru alone to develop their own WRX STI line]].
** The German-made Audi S3 Sedan can be considered a SpiritualSuccessor to the Mitsubishi Lancer Evolution line, utilizing the similar engine and drivetrain configurations, except it abandoned the huge rear-wing in favor of more-streamlined, Rosemeyer-style approach.
* In Japan, there is a giant rivalry between the Nissan Skyline (R34) and the Toyota Supra ([=JZA80=]). They are both high performance Japanese cars that feature a high-output inline-6 engine. Both are also popular among the tuner crowd.
* In Germany, it's BMW vs Mercedes. Audi has somewhat entered the stage, but may be ignored.
** With younger people it is often the current Golf GTI vs whatever Opel offers in the segment.
* Generally, mentioning that you like either European, American, or Japanese cars on any automotive forum will get you flak from fans of the other two camps. If you like American cars, prepare to hear numerous EagleLand "yank tank" and "your car can't turn" comments. If you like Japanese cars, prepare to hear RiceBurner, "tiny wimpy" and "no torque" comments. If you like European cars, prepare to hear "whiny rich-kids" and "poor reliability" comments.

[[folder:Comic Books]]
* Perhaps the second most enduring example is Creator/MarvelComics vs. Creator/DCComics. Debates on who has the better characters, who has the more well-rounded characters, which treats the talent better, and of course, the inevitable movie successes can get bloodied, and annoying for people who don't care about this sort of thing.
** Robert Downey Jr., the star of ''Film/IronMan'', even publicly smacktalked ''Film/TheDarkKnight'' (but see below).
** Particularly ironic given that Marvel and DC have done several [[{{Crossover}} crossovers]].
** Both sides' parent companies effectively made this rivalry an extension of another one mentioned below (namely, Disney vs. Warner Bros.)
* Franchise/{{Batman}} fans vs. Franchise/{{Superman}} fans.
** Later on, this has been expanded into Batman fans vs. fans of other DC superheroes.
* [[Franchise/TheIncredibleHulk Hulk]] fans vs [[ComicBook/TheMightyThor Thor]] fans
* Not as pronounced as it once was but ComicBook/{{Wolverine}} fans and Franchise/SpiderMan fans used to have large grudges against one another.
* Wolverine fans and Comicbook/ThePunisher fans also have one, fueled by that one time their respective writers used to regularly [[TakeThat exchange jabs]] at the other.
* Franchise/TeenTitans vs ComicBook/YoungJustice. This one began when [=DC=] decided to restore the classic Wolfman/Perez Teen Titans - and did so by taking the current Teen Titans and Young Justice books and merging them together. The transition was, shall we say, less than seamless. Young Justice fans were upset because their LighterAndSofter book had been canceled, with favorite cast members PutOnABus, and some of the survivors being written as far different characters. Teen Titans fans were upset because they had also lost favorite cast members (and two of them were killed), and now their book had been taken over by what they considered to be a SpotlightStealingSquad, the [[FanNickname YJ4]]. Being upset over the same thing, but for different reasons, a rivalry sparked. Sometimes more fuel gets tossed on the old fire, such as the [[WesternAnimation animated]] adaptions trading tones, or the ComicBook/{{New 52}} having no sign of the original Kid Flash or Wonder Girl.
* ''Comicbook/CrisisOnInfiniteEarths'' divided the Creator/DCComics fandom between fans and haters of the Pre-Crisis [[TheMultiverse multiverse]], mostly depending on whether you began reading comics [[UsefulNotes/TheBronzeAgeOfComicBooks before]] or [[UsefulNotes/TheDarkAgeOfComicBooks after]] the [[CrisisCrossover crossover]]. Discussions between these two groups could become pretty nasty at times.
** It's important to also note that most readers (although there are exceptions) are fans of the ComicBook/PreCrisis and the ComicBook/PostCrisis universe. However, fans of the ComicBook/PostCrisis universe are divided over those who think pre-ComicBook/{{Crisis|on Infinite Earths}} comics were just as enjoyable as ComicBook/PostCrisis ones, versus those who think everything Pre-Crisis was immature, shallow kiddie stuff.
** This dispute is now further complicated by the ComicBook/New52 reboot, which means that the DC FanDumb is now divided into three camps: Pre-Crisis, Post-Crisis/Pre-New 52, and Post-New 52.
* Within the Marvel fandom, there is a divide between fans that only read ''ComicBook/XMen'' comics, and the fans that read everything else but the ''X-Men''.
* Franchise/GreenLantern: Hal Jordan fans vs. Kyle Rayner fans, with outlying John Stewart and Guy Gardner factions.
* The ''Franchise/SonicTheHedgehog'' fanbase has two comics pitted against each other. The American [[ComicBook/ArchieComicsSonicTheHedgehog Archie comics]] and the British [[ComicBook/SonicTheComic Fleetway one]].
* ''[[Comicbook/TheAvengers Avengers]]'' fans vs. fans of Creator/BrianMichaelBendis, when Bendis started writing Avengers books. Some longtime fans took issue with Bendis' perceived lack of respect for the franchise. Fan objections didn't seem to hurt sales much, though -- when Bendis left the franchise in 2012, he had written the Avengers for 8 years and approximately 232 issues.
* ''[[ComicBook/TheAvengers Avengers]]'' fans vs. ''ComicBook/XMen'' fans, particularly from the latter side, who widely see Marvel as neglecting the X-Men in favor of the Avengers due to only having the film rights for the latter team and [[ComicBook/IronMan many]] [[ComicBook/IncredibleHulk of]] [[ComicBook/TheMightyThor its]] [[ComicBook/CaptainAmerica characters]]. In 2012, there was actually an ''ComicBook/AvengersVsXMen'' mega-crossover.
** This has spilled over into the film franchises as well. There's been many a debate over which franchise has the better movies, with many from the Franchise/MarvelCinematicUniverse side wanting Fox to lose their rights in order to absorb the X-Men into the MCU. Not helping matters was the legal gray area concerning the Scarlet Witch and Quicksilver, two characters synonymous with ''both'' franchises. This led to loads of debates over which franchise "deserves" the twins more. Quicksilver in particular has been cast for both ''Film/AvengersAgeOfUltron'' and ''Film/XMenDaysOfFuturePast''. [[spoiler:The fact that the MCU Quicksilver was KilledOffForReal at the end of his debut film, (though many speculate it may just be a ComicBookDeath) is often seen as Disney's way of saying they didn't need Quicksilver]].
* ''ComicBook/AvengersArena'' vs. ''Comicbook/{{Runaways}}'', ''ComicBook/AvengersAcademy'', and ''Sentinel'' fans (despite Arena featuring characters from all of those comics). Basically, Arena is a ContestedSequel to those comics with the AudienceAlienatingPremise of the ''Film/TheHungerGames''[=/=]''Film/BattleRoyale'' meets the [[KidHero youth of the Marvel verse]]. Fans of the characters mostly hate Arena and its [[CannonFodder Kill the C listers]] premise, along with its fans who don't seem to care about [[TheyWastedAPerfectlyGoodCharacter characters from critical darling books being wasted]] in a FollowTheLeader book, while fans of Arena for the most part just want to enjoy the story without being bogged down by continuity or having to listen to Academy and Runaways fans complain about the deaths.
** Thanks to ComicBook/{{X 23}} being in the series and their FriendlyFandoms status with ''Runaways'' and ''Academy'' fans, fans of ''[[ComicBook/NewMutants New X-Men]]'' don't hold many warm feelings for ''Avengers Arena'' either. Notable that is seems to reach on both sides of their BrokenBase -- fans of Weir & [=DeFilipis=]' run hate ''Arena'' for the same reasons they hate Kyle & Yost's run, while fans of Kyle & Yost's run see ''Arena'' as shallow attempt at replicating its success that's CompletelyMissingThePoint.
** And then there are fans of ''Deathmatch'' - Creator/BoomStudios series with similar premise of superheroes fighting each other to death, that had been announced sometime after ''Arena'', leading to many accusations of [[FollowTheLeader stealing the idea]]. Which was unlikely, because ''Deathmatch'' appeared way to quickly after ''Arena'', and writer Paul Jenkins said the sole reason he went to do ''Deathmatch'' at Boom! was that he thought neither Marvel or DC would let him publish a book like this under their banner. Fans of ''Deathmatch'', when faced with accusations of "stealing" from Arena either point out they don't really have that much in common or embrace it and say that yes, ''Deathmatch'' does the same thing as ''Avengers Arena''. Only better.
** Despite being written by the same creator, even some fans of ''ComicBook/{{Cable}} & ComicBook/XForce'' hate ''Arena''.
* Fans of post-ComicBook/{{Annihilation}} Cosmic Marvel and fans of Creator/JonathanHickman can get quite vocal against each other. It generally boils down to whether you like Hickman's stories enough to pass on the fact he quickly undid everything Creator/DanAbnett and Andy Lanning established for many characters and teams, that didn't fit his vision.
* There is a clear division between Marvel fans who prefer TheSixties Marvel and those who prefer TheSeventies and beyond. Creator/StanLee was the driving force during the sixties with his distinctive writing style. He wrote most if not all of the comics during the early years. There is also the debate over how much Lee actually wrote. The 70s had a new glut of writers such as Marv Wolfman, Bill Mantlo, Chris Claremont, and Steve Gerber, all of whom dispensed with Lee's over the top, hip, chummy style. To many advocates of 70s Marvel, Lee's co-creations seem flat and one dimensional. To many advocates of 60s Marvel, the 70s introduced too many violent antiheroes.
* Fans of ''Maximum Ride: The Manga'' versus fans of ''ComicBook/MaxRideFirstFlight'', over which one is the better adaptation of [[Literature/MaximumRide the source material]].
* Franchise/XMen fans vs [[ComicBook/TheInhumans Inhumans]] fans. Originally the two didn't mind each other, but after a massive marketing push by Marvel billing the Inhumans as "the next big thing!", the two seemingly can't stand each other. This stems from the Inhumans going from their own unique thing to being SuspiciouslySimilarSubstitutes for the entire mutant race, which many felt was because of Marvel not owning the film rights to the X-Men.
** There's also fighting over the writer of the main ''Inhuman'', and later ''Uncanny Inhumans'' series, Charles Soule. With the announcement that Brian Michael Bendis would be leaving the X-books, and the lack of any announcement on who would follow him, or even if a new X-book will exist, many X-fans want Charles Soule on the X-books. This is due to him already being a fan favorite writer and the fact that he penned ''Death of Wolverine''. This hope got thrashed by the ComicBook/AllNewAllDifferentMarvel announcements (X-Books are by various writers but Jeff Lemire got two and is the main X-writer, while Charles Soule still writes the main Inhumans book, and is even getting ''another'' one: ''All-New Inhumans''), but Soule ''would'' eventually write ''ComicBook/AstonishingXMen'' once he left the Inhumans books (though by this point, ''neither'' fandom particularly wanted him).
** For that matter, "classic" Inhumans fans and "modern" Inhumans fans, mostly coming from the older fans who think the new breed [[InNameOnly destroyed the concept]] in the name of pandering to a nonexistent fanbase, and the newer ones who think the old Inhumans were an embarrassing relic that nobody really cared about.
** The aforementioned marketing push explicitly put Inhumans at odds against Mutants, with the Inhumans presented as in the right, in a manner not unlike the controversial Avengers vs X-men event. This was a major factor in putting the fandoms at odds.
* ''ComicBook/{{Deathmate}}'' and its CreatorKiller status for Creator/ValiantComics engendered an eternal loathing between fans of it and Creator/ImageComics, whose ScheduleSlip doomed the event. Not helping this is that very few of Image's books from that era were as well-regarded as Valiant's, so on top of being responsible, they were also the group that many would have preferred gone. Even if the Image of today is nothing like the one that turned ''Deathmate'' into a failure, "It Should Have Been You" is a powerful feeling.
* Franchise/{{Superman}}:
** Pre-Crisis Superman fans vs Post-Crisis Superman fans. Many advocates of the Pre-Crisis Superman think their hero was turned into a whiny wimp, his world became darker and duller and his backstory more convoluted; and they hate the way many iconic characters and large chunks of the mythos were removed because some creative types didn't care for Supergirl, Superboy, Krypto, Kryptonian lore or the ''Comicbook/LegionOfSuperHeroes''. Many advocates of the Post-Crisis Superman dismiss the classic stories and characters prior to 1985 as kiddie, dumb stuff.
** Pre-Flashpoint Superman fans vs New 52 Superman fans. Many fans of pre-Flashpoint Supes hate that the New 52 Superman is an angry, violent Superman who dates Wonder Woman and wears an armored costume. Fans of the New 52 Superman think the old Superman is a cheesy boy scout whose relationship with Lois Lane was played out and that his costume was embarrassing. The comics eventually sided with the pre-Flashpoint fans, revealing that New 52 Superman (and Lois) was only half a character, and merging them with the married Lois and Clark who survived the previous universe. As of ''Action Comics'' #1,000, even the trunks are back!
** With Comicbook/{{Supergirl}}, there are the Kara Zor-El fans vs Linda Danvers fans. The first - and considerably larger - group isn't particularly interested in a Supergirl that isn't Superman's Kryptonian cousin (although they usually respect Linda). The second group refuses to consider that other Supergirls may be good and worthwhile characters and bash Kara at every turn. [[EnemyMine (And everyone hates Cir-El.)]]
* The fans of particular ComicBook/{{Robin}}s can get pretty intense with fans of a different Robin, though it's not uncommon to find people who like multiple Robins (though it's rarer to find fans of ''all'').
** This is particularly true between Dick Grayson fans and Jason Todd fans, since the characters are polar opposites, with one being the favorite son and a NiceGuy, while the other is the unfavorite and an anti-hero. Dick fans see Jason as a badly written "edgy" character while Jason fans see Dick as too nice and spoiled by Bruce.
** Similarly, Tim Drake fans and Damian Wayne fans tend to not get along, since Tim sought out the role himself and earned it, while Damian essentially gets it through inheritance and has done some ''very'' questionable actions as Robin. It doesn't help that Tim was fired to make way for Damian. You will ''very rarely'' find Tim fans who like Damian.
** Jason fans and Damian fans also tend to not get along, due to perceived favoritism for Damian from the Bat-family in-universe ''and'' editors out of universe, while Damian fans see Damian as Jason "done right". The two also frequently give each other no holds barred beatdowns, which doesn't help matters.
* For ''Franchise/TheFlash'', it's Barry Allen fans vs. Wally West fans. There are some Barry fans who never accepted his death and will always see him as the one true Flash, and dislike Wally's dickish attitude when he started out (older Flash fans may be fine with Wally but still tend to think of him as ''Kid'' Flash while Barry is the ''real'' Flash). Wally fans were fine with Barry at first (aside from those who found him boring), but after his return and the resulting demotion of Wally, they started hating him. Both sides tend to feel pretty positively about Jay Garrick, who is the CoolOldGuy and [[HonoraryUncle Honorary Granddad]] to all speedsters.

[[folder:Comic Strips]]
* ''ComicStrip/DennisTheMenaceUK'' vs. ''ComicStrip/DennisTheMenaceUS''
* ''ComicStrip/{{Heathcliff}}'' vs. ''ComicStrip/{{Garfield}}''
* ''ComicStrip/{{Peanuts}}'' vs. ''ComicStrip/CalvinAndHobbes''. Which is very {{iron|y}}ic, considering that Charles Schulz is one of Bill Watterson's main influences.

[[folder:Films -- Live-Action]]
* ''Franchise/PiratesOfTheCaribbean'' and ''Film/TheLordOfTheRings'' can be construed as an Creator/OrlandoBloom tug-of-war ([[DontExplainTheJoke he's Will Turner and Legolas respectively]]).
* You don't even have to leave the Pirates fandom to find a rivalry. Creator/JohnnyDepp fans love to attack Orlando Bloom fans on some forums, because they think Bloom is trying to copy him (apparently bearing a slight physical resemblance to someone = trying to be him in some minds). And then there's the [[ShipToShipCombat ship wars]] that break out over who Elizabeth should have ended up with.
* Film/TheDarkKnightSaga fans have achieved rivalries with a long list of film fans:
** Because they were both superhero movies released in 2008 that became extremely successful, a small rivalry developed between fans of ''Film/IronMan'' and ''Film/TheDarkKnight''. While the rivalry seemed to be pretty friendly (most fans were too happy to get '''two''' good superhero movies in one year and saw both), a small faction seemed to need to bolster their favorite movie by bashing the other. ''TDK'' fans accused ''IM'' of being a standard issue Marvel popcorn flick with an over-hyped Creator/RobertDowneyJr. ''IM'' fans hit back by saying that ''TDK'' was a [[DarkerAndEdgier brooding, pretentious]] movie that forgot it was supposed to be fun, and featured an over-hyped ([[DeadArtistsAreBetter and dead]]) Creator/HeathLedger. The pre-existing[[Creator/MarvelComics Marvel]] vs. [[Creator/DCComics DC]] rivalry probably didn't help. The rivalry flared again in 2012 when the ''Film/TheDarkKnightRises'' was released around the same time as ''Film/{{The Avengers|2012}}''.
** ''Film/{{Avatar}}'' and ''Dark Knight'' fans have fought over whether or not one film deserved more Oscars than the other (mentioned more in depth below).
** Another ''Film/TheDarkKnightSaga'' rivalry has sparked with fans of the Burton directed ''Franchise/{{Batman}}'' movies. Particularly over whether Creator/JackNicholson or Creator/HeathLedger is better as Comicbook/TheJoker (then there are those who like [[Series/Batman1966 Caesar Romero]], clown-whited-out mustache and all).
*** There's also a great feud between fans of Creator/MarkHamill's Joker from the Franchise/{{DCAU}} and fans of Creator/HeathLedger's Joker.
*** Add ''Film/SuicideSquad2016'''s Creator/JaredLeto to the mix...
* [[Franchise/MarvelCinematicUniverse MCU]] fans and [[Franchise/DCExtendedUniverse DCEU]] fans because Marvel vs DC and things never change. It doesn't help that the franchises are different as [[DarkerAndEdgier night]] and [[LighterAndSofter day]].
** The rivalry came to a head with ''Film/BatmanVSupermanDawnOfJustice'' and ''Film/CaptainAmericaCivilWar''. It started when the two movies were scheduled to release on the same day until DC moved their movie one month earlier which angered fans. Then the movies came out. [=BvS=] was lambasted by critics while ''Civil War'' was a critical hit. Not helping was that anamay ''Civil War'' reviews fueled the fire by snidely referring back to [=BvS=], using the movie as a platform to get in jabs at ''Dawn of Justice''. DC fans reacted by ''accusing Marvel of paying critics off'' and leaving fake reviews on Rotten Tomatoes and IMDB. This caused Marvel fans to respond by calling [=BvS=] overly pretentious.
** Even within the MCU, fans of different movies and characters fight with each other over their merits. Notably, some Captain America and Spider-Man fans resent Iron Man for his WolverinePublicity and accused the character of [[SpotlightStealingSquad overshadowing other superheroes]] since he became major supporting character in both ''Film/CaptainAmericaCivilWar'' and ''Film/SpiderManHomecoming''. Black Widow fans resent how Captain Marvel will be getting [[Film/CaptainMarvel2019 her own solo movie]] first even though Widow had been in the MCU longer. A one-sided rivalry between Black Panther and Spider-Man fans popped up in 2017 with some Black Panther fans expressing outrage that their movie was delayed from November 2017 to February 2018 make room for ''Film/SpiderManHomecoming'''s release in July 2017. However, since ''Film/{{Black Panther|2018}}'' was released in [[MeaningfulReleaseDate Black History Month]] and has surpassed ''Homecoming'' financially, ''Black Panther'' fans have (mostly) dropped their gripes and animosity. Even now, the rivalry is more of civil debate about whether Toomes from ''Homecoming'' or Killmonger from ''Black Panther'' is the better villain.
* ''Film/ManOfSteel'' fans vs. fans of the Creator/ChristopherReeve movies. The first side is considered a wild pack of ungrateful "highbrows", the other a beehive full of bitter Methuselahs. Of course, plenty of fans like both, but that doesn't matter to the fans engaged in the rivalry.
* ''Film/DiaryOfTheDead'' fans vs. ''Film/TheZombieDiaries'' fans. Ironic since the latter is/was Romero fans.
* The success of the ''Literature/{{Twilight}}'' movies comparable to many "boy-friendly" franchises has essentially created a battle of the sexes.
** ''Film/ThirtyDaysOfNight'' fans and fans of the director David Slade were at odds with ''Twilight'' fans because he directed ''The Twilight Saga: Eclipse''. ''Twilight'' fans worried he he was going to ruin it, while Slade fans believed he would finally make the franchise worth the hype. And there's also a BrokenBase regarding the fact that Slade chose to direct ''Eclipse'' when he said he didn't even want to touch the franchise.
* To a certain extent, ''Film/StarTrek2009'' versus ''Film/{{Avatar}}'' fans, due to the latter taking a lot of attention at the 2010 Oscars fans feel was stolen away from ''Trek''. This is mainly the younger fans that ''Star Trek'' gained, with its hipper, attractive cast and brisker storytelling, as opposed to Cameron's much longer story and more alien world. And that's before we toss in ''Avatar'''s (ultimately lost) rivalry with ''Film/TheHurtLocker'' at the Oscars.
** ...which was filmed by Cameron's ex wife, arguably a huge component in why it won.
** For that matter, fans of the [[FanNickname J.J. Verse]] vs. fans of the classic ''Trek'' series. Many of the latter are resentful of the reboot nature of the former, having desired a continuation of the storyline past the [[Series/STarTrekDeepSpaceNine Dominion War]]. They also often accuse the reboot franchise of simply rehashing the previous films (''Film/StarTrekIntoDarkness'' using Khan as the main villain certainly didn't help) rather than doing anything new. Fans of the former frequently cite the slicker visual look and argue the reboot provides a fresh direction for a long-running franchise.
* Going back to the 1950s, there's always been critical contention over who was the greatest Japanese film director at the time: Kenji Mizoguchi or Creator/AkiraKurosawa. Later on, Yasujiro Ozu became known outside of Japan and put a new spin on the debate.
** So the question is, 'Is Kurosawa, Mizoguchi, or Ozu the greatest Japanese film maker?' [[MathematiciansAnswer Yes.]]
* ''Film/District9'' fans and ''Film/{{Avatar}}'' fans for a variety of reasons. For one, D9 fans prefer the gritty, dark world of South Africa to the colorful, optimistic world of Pandora and think ''Avatar'' stole ''District's'' thunder at awards shows at the end of the year. Avatar fans counter that it is more realistic in its take on humanity, more emotionally involving, and better produced than D9.
** Interestingly, both movies could be seen as a DarkerAndEdgier or LighterAndSofter take on the other, respectively, which probably fuels the rivalry. (and much overanalysis by film nerds)
* Fans of Film/TheThreeStooges and the Creator/MarxBrothers have been somewhat at odds for decades, though most people have agreed to like them both. Same goes for Creator/LaurelAndHardy and Creator/CharlieChaplin versus either of the aforementioned comedy acts, or each other.
** Speaking of Chaplin, fans of Creator/BusterKeaton have been at odds with Chaplin fans since the Silent Era, with a lot of Keaton fans seeing Chaplin as over-rated because his fame overshadows Keaton's.
* Several Youtube comment fights broke out between Creator/ChristopherNolan fanboys and Creator/JamesCameron fanboys on almost every ''Film/{{Inception}}'' trailer in the weeks running up to the release. This rivalry probably started when ''Film/TheDarkKnight'' was, in the eyes of many, [[AwardSnub snubbed for an Oscar nomination,]] but ''Avatar'' was nominated the following year despite also belonging to a usually neglected genre and earned more money, and tempers boiled over when Inception hype reached fever pitch.
** And just like ''Avatar'' and ''The Hurt Locker'' above, ''Inception'' fans also hold a grudge against ''Film/TheKingsSpeech'' following the 2011 Oscars.
** A few vocal ''Inception'' fans also have a grudge with Music/NineInchNails fans; they feel that ''The Social Network'' shouldn't have won the Oscar for best soundtrack because "it's just 4 notes on the piano", despite many people being fans of ''Inception'', ''Film/TheSocialNetwork'' and Music/NineInchNails
* ''Franchise/{{Godzilla}}'' fans, mostly between fans of the Japanese movies vs. the [[Film/{{Godzilla 1998}} American remake]], you have to praise one and hate the other because [[FandomHeresy you cannot like both]].
** To a lesser extent Showa Era Godzilla (1954-1975) fans vs. Heisei Era Godzilla (1984-1995) fans. At rare times both types of fans will go after Millennium Era Godzilla (1999-2004) fans, mostly the ones that liked ''Film/GodzillaFinalWars'' due to its poor box office reception and lackluster reviews.
** Godzilla vs. Franchise/{{Gamera}}, sometimes mixing in Clover from ''Film/{{Cloverfield}}''. Godzilla fans often [[TrueArtIsAngsty boast about how much darker]] [[QualityByPopularVote and financially successful]] their movies are while Gamera fans boast that their 90s movies got more high quality reviews than most of Godzilla's movies.
** Fans that often argue toward one another on how ''[[Film/AllMonstersAttack Godzilla's Revenge]]'', ''Film/GodzillaVsSpaceGodzilla'', [[Film/{{Godzilla 1998}} the 1998 American remake]], or ''Film/GodzillaFinalWars'' as the worst Godzilla movie ever for various reasons all over the place including over used stock footage (''Revenge''), bad music (''Space Godzilla''), adaption rape (remake and ''Final Wars''), lackluster action (''Revenge'' and ''Final Wars''), ripping off ideas from other movies (remake and ''Final Wars''), bland story and/or characters (all of them), bad dubbing even worse than usual (''Revenge'' and ''Space Godzilla''), [[TheyChangedItNowItSucks bad updated appearances]] or the monsters themselves be them new or old (''Revenge'', remake, and ''Final Wars'').
* ''Film/{{Godzilla 2014}}'':.
** A minor one with ''Film/ManOfSteel'', with jokes about how Godzilla's battles with the [=MUTOs=] apparently caused less property damage than Superman's battle with Zod.
** There's one with ''Film/PacificRim'' revolving around debates over which stylistic approach is best for a ''{{Kaiju}}'' film, the fantastical and lighthearted one for ''Pacific Rim'' or the realistic and dark one for ''Godzilla''. Although there's a sizeable portion of people -including Del Toro himself- who'd love to see a crossover.
*** The Godzilla fanbase in general is either friendly with Pacific Rim fans, united in their love of kaiju — or would like them to piss them off because Godzilla is a genuine Japanese kaiju property, not an imitation, and would so totally own all the robots and creatures in that film. It didn't help that Godzilla had sequels immediately greenlit after its box office debut while Pacific Rim's sequel lingered in development hell until it was finally announced in 2016.
* Franchise/DCExtendedUniverse has many rivals that aren't named Marvel
** Like in the MCU, there is a intra-franchise rivalry in the DCEU regarding the tone and direction of the franchise. When ''Film/WonderWoman'' was released in 2017, it became the most critically and financially[[note]]Although its worldwide gross is less than that of ''Batman v Superman'', its higher domestic gross and lower budget means that it generated a ''much'' higher profit margin.[[/note]] successful DCEU movie up to that time, while also garnering praise from Creator/FrankMiller, Creator/RichardDonner, and Creator/ChristopherNolan. Likewise, ''Film/{{Aquaman}}'' was released the following year and received a better critical reception compared to ''Film/ManOfSteel'' and ''Film/BatmanVSupermanDawnOfJustice''. However, some fans of Creator/{{Zack Snyder}} (director of ''Man of Steel'' and ''Batman v. Superman'') have accused ''Wonder Woman'' and ''Aquaman'' of "selling out" for abandoning the DarkerAndEdgier tone of previous DCEU films. This in turn has led to some ''Wonder Woman'' and ''Aquaman'' fans firing back at these detractors for either refusing or failing to acknowledge that a dark tone doesn't automatically result in a good film and that directors Creator/PattyJenkins and Creator/JamesWan deliberately choose to make their movies more light-hearted by their own volition. Furthermore, Superman fans were riled when ''Film/Shazam2019'' director David Sandberg joked how Shazam could kick the DCEU!Superman's ass and mocked the [[NeverLiveItDown infamous]] "Save Martha!" scene from ''Film/BatmanVSupermanDawnOfJustice''. Granted, Sandberg was joking but some DCEU fans [[PoesLaw took his comments at face value]].[[note]]Given how the character was created as a Superman knockoff by Fawcett comics, there are bound to be flame wars about who is the better hero regardless of the creative minds involved in these movies.[[/note]]
** Even though both properties are co-produced and distributed by Warner Bros., fans of [=DCEU=] and Film/{{Monsterverse}} (the American shared universe centered around Godzilla and other Kaiju) really don't get along. So far, the Monsterverse films have received more critical praise than all DCEU movies bar ''Film/WonderWoman'' with some commentators claiming that the Monsterverse is better at setting up a cinematic universe than the DCEU. Not helping matters is that some Monsterverse fans have spoofed the more controversial scenes in the DCEU like [[spoiler:Superman killing Zod in ''Film/ManOfSteel'']] and "Save Martha!" scene in ''Film/BatmanVSupermanDawnOfJustice'' using goofy Godzilla memes like [[http://knowyourmeme.com/photos/1077033-godzilla these]] [[http://knowyourmeme.com/photos/1294277-godzilla ones]].
* ''Franchise/{{Ghostbusters}}'' has a rivalry which crosses multiple media: Fans of Columbia's franchise call themselves "Ghostheads," and fans of [[WesternAnimation/FilmationsGhostbusters Filmation's franchise]] (the one with the gorilla) call themselves "Go-ers." These days, it's less of a rivalry and more of an uneasy alliance.
* One of the nastiest: ''Film/TheIllusionist'' vs. ''Film/ThePrestige''. Be careful who you discuss either of these movies with. The argument might lead to IQ dissing. Seriously though, it's impossible to find someone who's a fan of both, even though both movies deal with magicians and revenge plots... They just appeal to different folks. Loving one means hating the other. In fact, your love for one is pretty much ''defined'' by how much you hate the other. People pick sides based on which one they saw first, which one they saw in the cinema, Bale/Norton affection, Jackman/Rufus affection, belief that if it has Caine/Giamatti in it, it must be epic... But you ''have'' to pick a side.
* A minor and friendlier rivalry occurred among the filmmakers and fans of the ''Film/XMenFilmSeries'' and ''Film/SpiderManTrilogy'' since both series kick-started the return of comic book movies for the new millennium with their second acts often being cited as some of the best superhero flicks ever made.
* As with Creator/{{Sony}}'s ''Film/TheAmazingSpiderManSeries'', many fans of the Franchise/MarvelCinematicUniverse criticize ''Film/XMenDaysOfFuturePast'' just for existing and maintaining {{Creator/FOX}}'s hold on the X-Men film rights, since they wish the rights would go to Marvel Studios. All the more since Quicksilver and Scarlet Witch, two characters synonymous with both the Avengers and the X-Men, were in something a legal grey area (and appeared in both franchises). And then there are the accusations of Marvel trying to undermine Fox's success by downplaying its ''ComicBook/XMen'' marketing in the comics and cancelling its ''ComicBook/FantasticFour'' titles, while playing up lesser-known teams and characters such as the ComicBook/GuardiansOfTheGalaxy and Inhumans that will appear in its upcoming movies.[[note]]This is something it ''isn't'' doing with Franchise/SpiderMan, for obvious reasons, but Marvel is known to be on better terms with Sony than with Fox as well.[[/note]] Given that most of these franchise's box office draw comes from movie goers and not comic fans, however, one has to wonder how people got this assumption.
** Note that this MCU rivalry is different for ''X-Men'' than for ''The Amazing Spider-Man'' (which has a FandomRivalry with ''DOFP'' in its own right). Due to ''DOFP'''s very positive reception, the rivalry is less "they're turning the series into a FranchiseZombie [[AshCanCopy just to hold on to the rights]]"[[note]]A criticism of ''Film/TheAmazingSpiderMan2'' by [[BrokenBase some fans]][[/note]] and more "which Marvel movie series/universe is better". Although the Disney-Fox merge initially seemed to quell the rivalry, in many ways it actually intensified the rivalry with some fans worried that the X-Men will be cheapened by their inclusion in the MCU. Said fans have argued that the X-Men work better in their own universe, since it wouldn't make sense why the Avengers are so respected yet mutants are hated. Furthermore, the X-Men movies tend to be more darker and violent than the MCU movies, which has led to concerns that there won't be another R-Rated X-men movie in the MCU. Not helping matters is that recasting rumors and the potential scrapping of several film projects has led to outrage among fans who have become attached to the X-Men characters and films.
** ''Film/Deadpool2016'', however, seems to have avoided much of the hate, likely due to MCU fans accepting the fact that Disney would never make an R-rated Deadpool movie with the level of sex and violence that Fox allowed.
** ''Film/{{Logan}}'' was also able to avoid hatred from MCU fans due to its much more intense depiction of Wolverine with a deep R-rating.
*** And then there's the rivalry between ''Logan'' fans and ''Deadpool'' fans due to the two films' radically different tones.
** With regards to the Fantastic Four, MCU fans were heavily critical of ''Film/FantasticFour2015'' simply for existing, which wasn't helped by the suspicious timing (the reboot of the FF film franchise was announced in 2009 but made no progress until 2014, which was around the same time the rights to the team would've reverted back to Marvel). Fans of the Fantastic Four, meanwhile, were sour against MCU fans in turn and accused Marvel of trying to undermine the movie's success (no official merchandise was released for promotion) and the team itself due to the cancellation of its ''ComicBook/FantasticFour'' titles (although that was caused more by bad sales than anything else). It was ultimately subverted when the movie came out after a deeply and well-publicized TroubledProduction to scathing reviews and was a BoxOfficeBomb, making many FF fans agree that a film franchise of Marvel's First Family would indeed be better handled under Marvel Studios.
* ''Film/TeenageMutantNinjaTurtles2014'' with ''Film/GuardiansOfTheGalaxy.'' They were released a week apart from each other, and they're both based on comic books with an anthropomorphic animal as one of the main characters. Didn't help that the film managed to steal the number 1 spot from them at the box office (although ''Guardians'' had a higher opening). Even more, ''Guardians'' actually took back the number 1 spot sometime afterward.
* ''Franchise/StarWars'' fans vs. fans of the UsefulNotes/NewHollywood[=/=]"Auteur Era." This is because many New Hollywood fans see the release and overwhelming success of ''Film/ANewHope'' as the beginning of a shift in the film industry away from arty, director-driven films and toward "big, dumb" {{Summer Blockbuster}}s. In reality, there were many other reasons for the New Hollywood's decline, including the fact that its aforementioned director-led nature led to some [[PrimaDonnaDirector truly gargantuan egos]] springing up.
* ''Film/StarWarsTheLastJedi''
** The movie has one with both ''Film/WonderWoman'' and ''Film/{{Black Panther|2018}}''. Although the films are critical and commercial hits, while also having non-{{White Male Lead}}s, the two superhero movies are better received among audiences than ''The Last Jedi'' and didn't experience the same amount vitriolic backlash. This in turn has led to the fanbases arguing about which film is better at representing women and minorities while also providing escapist entertainment.
** In turn, ''The Last Jedi'' fans has a rivalry with fans of superhero movies in regard to debates about formula and audience-pleasing. ''The Last Jedi'' fans claim that superhero movies play it too safe and have spoiled audiences into becoming very hostile to deconstructions and genre-critiquing in blockbusters. Superhero fans, however, pointed out that their movies can be as introspective and deconstructive as ''The Last Jedi'' and that the movie should have only itself to blame for its backlash. It doesn't help that many superhero movies released from 2016 to 2018 have many similarities to ''The Last Jedi'' [[note]]Whether it's having an escapist hero growing into a jaded mentor (''Film/{{Logan}}'' and ''WesternAnimation/SpiderManIntoTheSpiderVerse''), themes of dealing with the past (''Film/ThorRagnarok'' and ''Film/{{Black Panther|2018}}''), or non-{{White Male Lead}}s (''Black Panther'', ''Film/WonderWoman'', and ''Film/{{Aquaman}}'')[[/note]] but none of the fan backlash.
* In some cases, the ''Film/{{Carry On|Series}}'' film series vs ''Creator/MontyPython'', mostly due to the fact that ''Monty Python'' is commonly associated with the Creator/{{BBC}} and ''Carry On'' is often distributed on Creator/{{ITV}} (both dueling TV stations in themselves). Unintentionally, the fact that the ''Monty Python'' series hasn't been shown on television for years in Britain, yet ''Carry On'' occasionally gets an appearance a couple times a year, adds a bit of fuel to the rivalry pot.
* Some fans of ''Film/TheBreakfastClub'' have a beef with those of ''Film/BackToTheFuture'' for AwardSnub reasons: during the 1986 Academy Awards, Back To The Future was nominated for awards that Breakfast Club should have been nominated for (the most notable being Best Song).
* Some ''Film/SpiderManTrilogy'' fans have a beef with ''Film/TheAmazingSpiderManSeries'' fans over which portrayal of Spider-Man was TruerToTheText and which one handled the characters better. Some fans of the former tend to criticize Andrew Garfield's portrayal and others calling him a ReplacementScrappy to Tobey Maguire's portrayal. Some fans of the latter tend to criticize Maguire's portrayal by feeling that he was whiny and had a lack of personality in addition to comparing his acting to a brick wall.
* While there's significant overlap in the fandoms, there's been some sniping between admirers of Creator/AlfredHitchcock and Creator/BrianDePalma. The Hitchcock side accuses De Palma of crossing the line from homage to [[FollowTheLeader outright ripoff]] of Hitchcock in his thrillers. The De Palma side argues that De Palma's references to Hitchcock are just part of a larger sophisticated sensibility in De Palma's work, and that De Palma's films were actually better than [[SeasonalRot Hitchcock's later films]].

[[folder:Meta]]
* Fans vs. [[{{Hatedom}} anti-fans]]. Anti-fans are disgusted by fandoms, which are generally composed of whiny, emotionally stunted philistines with a tremendous sense of entitlement who are confused and frightened by every new thing in their precious objects of fandom and more interested in belonging to a group than actual art. Meanwhile, fans of all stripes detest a particular culture of smarmy, black-hearted, elitist hipster cynics who would rather choke on a barbed wire lollipop than remove the rod from their collective ass and enjoy themselves.
** At the time that some people were getting into science fiction fandom more for the social aspects of fandom than because they were into the genre, the expression "We're just fans, we don't read the stuff" appeared. Opponents of those people responded with the slogan, "We're not fans, we just read the stuff."
* [=FIAWOL=][[note]]Fandom Is A Way Of Life[[/note]] vs. [=FIJAGH=][[note]]Fandom Is Just A Goddamn Hobby[[/note]]
* There also seems to be a {{Hatedom}} towards SpeculativeFiction (regardless of the medium) from others who like things that are non speculative fiction, like LitFic and other medium equivalents for example.
** Within speculative fiction as a whole, we have ScienceFiction vs. {{Fantasy}}, though the line between them is [[Analysis/SpeculativeFiction fairly unclear]].
* Fans vs fans who write FanFiction. If non-fic fans know much about fic-ers they've depicted them as sexually frustrated middle-aged women with too much time on their hands who will pair up anyone with anyone/thing (leading to comments about how "disgusting" fanfic is[[note]]ALL of it[[/note]]). Fic-ers on the other hand bash the rest of the world for "closed minded hate" towards favored characters or ships, equating a dislike of fanfic with the closeted, agoraphobic nerd who won't remove action figures from the original packaging and is anti-fun. Fic-ers have also been known to get slightly miffed whenever a non-fic-er sociologist or anthropologist tries to "understand" this subculture. For the most part though, both groups casually ignore each other under the mantra that the other just doesn't "get it", and fanfiction tends to remain relatively unknown to the average muggle.
** Add to that certain genres of fanfiction that appeal to different types of fans. It depends on the fandom, but generally, it's best to watch for writers of shipping fics vs. writers of grimdark fics vs. everyone else.
** Fanfic writers who make extensive use of [[OriginalCharacters OCs]] in their fanfics vs. fanfic writers who see them as a necessary evil at best.
* Spoilers vs no spoilers. Some fans enjoy finding out what's ahead for their favorite shows, while others throw a fit if they find out even a small tidbit about what's coming.
* In homosexuality-focused genres ({{Yaoi}}, {{Yuri}}, SlashFic), fans who think they should be about actual GLBTQ experiences and issues vs fans who just want to see cute boys/girls boinking.

[[folder:Pro Wrestling]]
* Casual fans (Marks) vs. Hardcore fans ([[SmartMark especially those that self identify as "smarks"]]) since the two groups look at the product in different ways.
* Prior to [=McMahon=] nationalizing WWF, promoters were very defensive of their territory. The Wrestling/AmericanWrestlingAssociation vs. the Wrestling/NationalWrestlingAlliance was common.
* To make a long story short Wrestling/AllJapanProWrestling vs Wrestling/NewJapanProWrestling after they split from the JWA, Giant Baba vs Wrestling/AntonioInoki being deliberately invoked by the later. Then then both of them vs [[Wrestling/{{FMW}} Frontier Martial-Arts Wrestling]], who actively campaigned against "Japanese Mainstream" and briefly became big enough to be a national promotion in their own right. While FMW went dormant, Wrestling/DragonGate rose up to be another third wheel.
* Wrestling/{{CMLL}} vs Lucha Libre Interacional/Universal Wrestling Association. Then CMLL vs Wrestling/{{AAA}}. Then both vs IWRG. Sometimes Liga Elite fans join one of the other two against Triple A.
* Prior to the mid 1980s, "Puroresu" was just {{Engrish}}, a rough untranslated way Japanese fans said "Pro Wrestling". During the mid 1980s, the Japanese diaspora began using "puroresu" in the vein Mexican and some other Spanish speaking fans used "Lucha Libre" when referring to a specific style of pro wrestling. While "lucha libre", roughly translating to "free fight", grew out of an existing pro wrestling tradition, ''was'' rather different from what came before it and pretty much took over Mexico's wrestling circuit, the insistence of "[[InsistentTerminology puroresu]]" was born out of desire to not be associated with the WWF and Wrestling/{{GLOW}}.
* Wrestling/RicFlair vs. Wrestling/HulkHogan, as an extension of the NWA vs WWF.
* [[Wrestling/AllJapanWomensProWrestling Zenjo]] vs JWP vs LLPW. Then Zenjo vs GAEA.
* [[Wrestling/{{WWE}} WWF]] vs. Wrestling/{{WCW}} vs. Wrestling/{{ECW}}, especially during the Wrestling/MondayNightWars.
* Also, Wrestling/ShawnMichaels and Wrestling/BretHart have settled their differences, but that doesn't stop their respective fans from engaging in flame wars regarding who was better.
* Wrestling/ProWrestlingNOAH, which split off from AJPW, vs Wrestling/ProWrestlingZero1, which split off from NJPW. However, became less of a rivalry and more of a shared respect after the passing of company founders Wrestling/MitsuharuMisawa and Wrestling/ShinyaHashimoto.
* WWE vs. would be WCW successor Wrestling/{{TNA}} vs. would be ECW successor Wrestling/RingOfHonor, though despite the addition of wrestlers made famous by either WWE or WCW, TNA's ratings remain stagnant. While ROH has more direct rivalries with other promotions(see below) and will more readily attack TNA before WWE([[EtTuBrute because they used to work together]]), there have been a subset of WWE fans hostile to ROH from the very beginning, to the point even comments meant to be complimentary("I'd like to see ___ in WWE") or constructive ("ROH should have signed *future endeavored WWE wrestler here*") sometimes inspire backlash from ROH fans.
** ROH fans became a little more anti WWE after 2015 when it started doing several things seemingly just to spite ROH, the main three being actively trying to sign members of the ROH roster, running shows in the same or adjacent venues to ROH and trying to funnel talent that would otherwise be in ROH to EVOLVE, largely because it all started when WWE realized signing Wrestling/KevinSteen didn't let them [[MerchandiseDriven stop ROH from selling Steen dolls]]. In the first case they didn't actually get that many wrestlers but did got enough to have ROH stretching for credible contenders to champion Wrestling/JayLethal, which took a lot of heat away from his hot title run, and that's if you're under the impression Wrestling/AJStyles would not have simply ended it, which he was being teased to do before it became obvious he finally bit on a WWE offer in December. In the second case ROH's attendance numbers continued to climb anyway but the gains were somewhat ignored in the face of WWE managing to equal or out draw them with BShow material that often featured guys wrestling in ROH not too long ago. In the latter case, fans were pretty upset about the breakup of the Pretty Boy Killers TagTeam as Keith Lee left ROH and Shane Taylor to eventually become WWN Champion. On the other hand, some ROH fans were loyal enough to those wrestlers to follow them to WWE or EVOLVE.
* Ring Of Honor also had one with Wrestling/ProWrestlingGuerilla, which was kicked off by accident when a WorkedShoot worked [[GoneHorriblyRight too well]], Wrestling/DragonGate (specifically DGUSA, when ROH head booker Gabe Sapolsky moved there after being fired) and Wrestling/{{CZW}}, the later of which was {{exploited|trope}} to produce what is considered to be the [[UltimateShowdownOfUltimateDestiny greatest feud]] in ROH history. ROH for its part had been selling PWG merchandise since the Feinstein incident and [[{{Invoked|Trope}} promoted harmony]] between [[FriendlyFandoms the fan bases]] when Wrestling/MartyScurll entered ''[[TournamentArc The Battle For Los Angeles]]''.
* From within the WWE itself are Raw vs. Smackdown ([[TechnicianVersusPerformer the flagship sports entertainment show vs. the wrestling show]], made worse when the Draft often relocates a lot Smackdown talent to Raw), brand extension fans vs. unified company fans, [[Wrestling/JohnCena Cena]] fans vs Cena haters, Superstars (especially Divas) with indy wrestling backgrounds vs. WWE/NXT homegrowns, Wrestling/JimRoss vs. Wrestling/MichaelCole, and combinations of the WWE's different eras (Rock and Wrestling vs.The Wrestling/MondayNightWars[=/=]Wrestling/AttitudeEra vs. Ruthless Agression Era vs. WWE Universe Era)
* IWA Mid-South fans vs fans who wrote it off as an ECW ripoff, though it came to a head with All American Wrestling's when Wrestling/JimmyJacobs tossed the IWA Heavyweight Title belt in the trash for AAW.
* People who agree with Wrestling/{{WWE}} regarding making Wrestling/ChrisBenoit an UnPerson and those who want him in the Hall of Fame and his matches on DVD.[[note]]There was a Benoit [=DVD=], 2004's ''Hard Knocks: The Chris Benoit Story.'' WWE took it out of print following the tragedy.[[/note]]
* Wrestling/{{SHIMMER}} vs Wrestling/{{WSU}} vs SHINE, the three most prominent women's wrestling promotions in the USA. Mainly WSU vs SHINE, as the former lost some ground when its owner's health started to fail and the latter rose up centered around {{exp|y}}ies of the Midwest Militia and Rain's Army, which were best known as WSU groups. And all of them hold women's wrestling fans who only watch WWE in disdain.
* Nowadays its Wrestling/{{WWE}} vs. Wrestling/{{NJPW}} (w/ROH\CMLL to a lesser extent due to their crossovers) vs. Wrestling/LuchaUnderground and occasionally Anthem!Wrestling/ImpactWrestling as a four-way dance.
** Or as the Wrestling/{{Cody|Rhodes}}\[[Wrestling/TheYoungBucks Young Bucks]] driven ''All In'' and Wrestling/ChrisJericho's Cruise prove its NJPW, ROH, Impact, Lucha Underground/AAA, WOS & MLW ''[[RivalsTeamUp vs.]]'' WWE. While that list might look long, it could easily be spun into a continuation of the old NWA vs WWF rivalry, even ignoring that the NWA World Heavyweight Title was the belt defended during the main event of ''All In''. What's changed is that most of the shows opposing fan bases swear by [[VestigialEmpire are no longer united by the NWA brand]], so [[WeAreStrugglingTogether the diversity]] of WWE's opposition becomes more readily apparent.
[[/folder]]

[[folder:Tabletop Games]]
* Any edition change for a popular game sets of this. Examples are D&D 2nd Ed vs 3rd Ed, ''TabletopGame/VampireTheMasquerade'' vs ''TabletopGame/VampireTheRequiem'', D&D 3rd Ed vs D&D 4th Ed.
* TabletopGame/{{Eberron}} vs. the TabletopGame/ForgottenRealms for ''TabletopGame/DungeonsAndDragons'' fans.
** Pretty much every setting has its rivals. Fans of TabletopGame/{{Greyhawk}} tend to grumble at TabletopGame/ForgottenRealms for displacing Greyhawk as the "generic" setting, fans of TabletopGame/{{Spelljammer}} and TabletopGame/{{Planescape}} bicker with fans of more down-to-Earth settings, and fans of TabletopGame/{{Dragonlance}} tend to be rivals with just about everyone else (primarily because Dragonlance fans have always been fans of the novels first).
* ''TabletopGame/DungeonsAndDragons'' fans and ''TabletopGame/TheWorldOfDarkness'' fans dislike each other. The former see the latter as a bunch of mopey goth {{LARP}}ers, and the latter see the former as a bunch of ignorant fanboys that can't grasp complex characters.
* ''TabletopGame/WarhammerFantasy'' and ''TabletopGame/{{Warhammer 40000}}''. Fantasy fans tend to look down on 40k fans because they consider 40k to be be "dumbed down", while the 40k fans consider fantasy to be duller than 40k and having some needlessly complex rules. Lots of people still play both, although they tend to play one more than other.
** Occasionally joining forces to bash the players of third Games Workshop's game, ''Lord of the Rings'', as playing kiddies' game.
** Of course, this gets extra stupid when much of the fanbase plays both, many of the parts and models are interchangeable, and ''they're all made by the same company''. [[FanDumb But that doesn't stop anyone]].
** When it comes to different companies, it can get even worse. One of the relatively notable cases is the TabletopGame/{{Warmachine}} games vs. the Warhammer games. Expect to see "Page 5" and "GRIMDARK" thrown around if the two groups have "discussions".
** Just about any time a new codex comes out. Liking it means you're a {{Scrub}} who only plays [[GameBreaker Game Breakers]], disliking it means you're a StopHavingFunGuy who can't handle change.
** There are some people who are fans of what Matt Ward did for the Ultramarines, Grey Knights and Necrons, others who see it as CreatorsPet, GodModeSue and CharacterDerailment respectively.
* Whilst there are plenty of people who enjoy both, fans of ''TabletopGame/{{Diplomacy}}'' versus fans of ''TabletopGame/{{Risk}}''. ''Risk'' fans say ''Diplomacy'' is boring, ''Diplomacy'' fans say ''Risk'' is "''Diplomacy'' for idiots."
* ''TabletopGame/MagicTheGathering'' and ''TabletopGame/YuGiOh'' players tend to regard each other with disdain, with the latter having been the former's biggest (and longest-lasting) rival. Yu-Gi-Oh fans often call Magic out on new players being LockedOutOfTheLoop and the various LoopholeAbuse by players, while Magic The Gathering fans tend to criticize Yu-Gi-Oh for how severely broken and unbalanced the game of Yu-Gi-Oh is in general and that Yu-Gi-Oh players often only have the option between a few very expensive leading GameBreaker decks to fight on championship levels or to not play competitively at all, making sure that there will be no original decks in tournaments. There are fans of both games, but they are few and far between.
** Though some tend to skip over the fact that the latter ''was inspired by'' the former. For that fact, ''Franchise/YuGiOh'' ''[[WhatCouldHaveBeen wouldn't even exist]]'' if [[EnsembleDarkhorse a certain opponent of the week and his game]] [[BreakoutCharacter hadn't caught the eye of the audience]].
* ''TabletopGame/DungeonsAndDragons'' vs. ''TabletopGame/{{Exalted}}'', largely because of the infamous advertising campaign used by Creator/WhiteWolf. "Graduate your game from third edition!" indeed. Also because many of ''TabletopGame/{{Exalted}}'''s veteran fans started in ''TabletopGame/TheWorldOfDarkness'' and brought their hate to the table.
* ''TabletopGame/DungeonsAndDragons 4th Edition'' versus ''TabletopGame/{{Pathfinder}}''.
** For that matter, 3.x fans and ''Pathfinder'' fans often find themselves arguing, mostly over if ''Pathfinder'' is a straight upgrade that plugged 3.x's holes or if it's a knockoff version that broke more things than it fixed.
** Even within the ''D&D'' fandom, there's fans of martial classes (Fighter, Barbarian, Paladin) vs. fans of magic classes (Wizard, Bard, Druid). [[TrollingCreator Mike Mearls (pro-martial) and Monte Cook (pro-spellcaster)]] encouraged this until Cook left the design team.
** Even between caster classes: Wizards[[note]][[BadassBookworm gains magic through hard work and learning]][[/note]] vs. Sorcerers[[note]]gains magic power through being inherent gifted, [[HalfHumanHybrid possibly through an inhuman bloodline]][[/note]]. Fans of Sorcerers prefer the themes of inherent magic power and the CHA spellcasting that lets Sorcerers double as TheFace; fans of Wizards prefer the concept of an ordinary muggle gaining power through hard work and the sheer spellcasting versatility from a wider selection of spells. 5th Edition makes things worse by tearing Metamagic out of the Wizards' hands and making it a Sorcerer exclusive, and also introduces Warlocks: casters who gain power through a DealWithTheDevil and use a more limited but simpler magic system with focus on cantrips and other abilities.
** And also rolling dice for stats vs. point buy. Point buy fans argue for better balance between players (either one player rolls well and everyone else is OvershadowedByAwesome or one player rolls worse and CantCatchUp) and more creative freedom. Fans of rolling cite the "ritual" novelty of rolling for stats and suggest that point buy lends itself to a degree of {{Munchkin}}ism and players creating "builds" rather than organic-feeling characters.
* In Germany, ''TabletopGame/DungeonsAndDragons'' (being the most popular RPG worldwide) vs. ''TabletopGame/TheDarkEye'' (being Germany's most popular RPG). Though there is some overlap to be expected (plenty of D&D players started with TDE), the fundamental gamestyle and setting differences lead to a lot of discussions which system is actually better. Whether it's the one of the other is mostly down to one's preferences.
* OlderThanTheyThink: Chess vs. Checkers. Both are immensely old and popular board games, but both have always been compared to one another in terms of quality. It has been documented ever since the 19th century. For a long time Checkers was considered the winner due to being considered to be harder and more modern than Chess was when it comes to warfare, with various Chess players then back again saying that players of Checkers were biased and that Chess can be quite hard to play as well.
[[/folder]]

[[folder:Technology]]
* Another legendary fandom rivalry: UsefulNotes/{{Mac}} vs. [[UsefulNotes/MicrosoftWindows Windows]]. Embodied and parodied in Apple's "I'm a Mac and I'm a PC" commercials. This also leads to a false conception of computer history of being mainly composed of Apple and Microsoft (much to the consternation of Commodore, Atari and Acorn fans), and idolizing their [=CEOs=].
** Those commercials are entirely biased towards Macs, as expected. How much Apple plays up the Mac's good qualities and exaggerates a PC's bad qualities is open to debate, though there are one or two more heavy-handed commercials in favor of the Mac.
*** Even though those commercials do have rather a MisaimedFandom that sees the PC (played by [[Literature/TheAreasOfMyExpertise John Hodgman]] in the US and Creator/{{David Mitchell|Actor}} in the UK) as a goofy, loveable underdog, while the Mac user is a posing hipster.
*** Even the ads themselves have recognised this and moved into FriendlyRivalry status.
** Worth noting is that PC fans tend to see the additional complexity as an ''advantage'', as the all-in-one, tightly integrated designs Apple has pushed for the last decade don't lend themselves well to upgrading or replacing faulty components.\\
Many professional workstation users have derided the 2013 Mac Pro as an "overpriced trash can" that can't even support aftermarket graphics cards internally compared to the classic "cheese grater" Mac Pro/Power Mac G5 case design, and due to its age and unyielding price tag, have jumped ship to PC workstations. Apple even had to apologize to their creative professional userbase for the lack of Mac Pro updates and released the [=iMac=] Pro as a stopgap measure, though the all-in-one design with [[CrackIsCheaper a $5,000 base price tag]] and no NVIDIA graphics options still isn't winning over the pro market.\\
Then you have the [[WebAnimation/ZeroPunctuation "Glorious PC Gaming Master Race"]] types who hate Macs for similar reasons, being overpriced, underpowered machines that a custom PC build would gleefully turn into a CurbStompBattle in performance terms, not to mention that [=macOS=] gets a mere fraction of the game releases that Windows does despite Valve's highly promoted port of Steam and several of their own games to the Mac. It's also worth noting that Oculus dropped Mac support for the UsefulNotes/OculusRift between the [=DK2=] and first-generation consumer model ''because all of Apple's systems had [=GPUs=] that were too weak, and until Thunderbolt 3.0, no viable means to upgrade.''
** Earlier than that was the UsefulNotes/{{Amiga}} vs. UsefulNotes/AtariST users.
** And earlier than ''that'' was UsefulNotes/AppleII vs. UsefulNotes/TRS80 vs. UsefulNotes/VIC20[=/=]UsefulNotes/{{Commodore 64}} vs. UsefulNotes/Atari8BitComputers. In the UK the concurrent main rivalry was the UsefulNotes/ZXSpectrum vs. the UsefulNotes/{{Commodore 64}}
** And earlier than ''that'' was 8080/Z-80 vs. 6800 vs. 6502 vs. 1802 in homebuilt computers.
** It's not just bad enough that the Linux fanbase is in rival with the Mac and Windows ones, but is actually divided on several grounds itself. Debian vs Red Hat vs Slackware (and by extension, DEB package management vs. RPM package Management vs. TGZ package management), KDE (which within consists of [=KDE4 vs KDE3/Trinity=]) vs. GNOME (which within consisted of [=Gnome2/Mate/Cinnamon/XFCE=] vs Gnome3) versus every other desktop environment out there (and even mouse-based GUI vs. keyboard-driven GUI like Ratpoison vs. pure CLI), vi vs emacs vs nano, Copyleft licenses such as GPL vs permissive licenses[[note]]e.g. Apache, PHP, MIT and BSD licenses[[/note]], initscripts (BSD vs [=SystemV=] vs [=SystemD=]), etc...
** And the weird part? [[FridgeLogic The guy who plays Mac in the commercials uses windows during his appearance as Matt Farrell]] in ''Film/LiveFreeOrDieHard''.
** Adding to this are the "Browser Wars" with the heavyweight fight being between Microsoft's Internet Explorer (though recently, Edge seems to be in position to take its' place) Mozilla's Firefox and Google Chrome; Opera and Safari have smaller fandoms who are against everyone at once.
*** Even within Mozilla, there's a large split between those who want individual programs doing specific things (ie. Firefox+Thunderbird+[=KompoZer=]) vs. those who want everything in a suite like the original Mozilla client (read: Seamonkey). Heck, even Firefox has a split fanbase and has spawned several forks!
* It isn't just software. There's Intel vs. AMD for x86 [=CPUs=] and AMD vs. Nvidia for [=GPUs=] with the big ones, and more than likely much smaller feuds between vendors. And then there's Hard drive rivalry, which is still pretty a big one, even with the only three groups remaining (Western Digital[[note]]who bought over Hitachi, who bought their hard disk business from IBM. Did we mention that Hitachi is the black sheep of the hard drive world except to it's small handful of fans?[[/note]]. vs Seagate[[note]]who previously bought out Conner and Maxtor, the latter who bought out Quantum, then bought over Samsung after the latter split from the Toshiba-Samsung partnership[[/note]], and Toshiba Data Devices[[note]]who previously had a partnership with Samsung, only to split later when Samsung sold their storage division to Seagate[[/note]]), with LiesDamnedLiesAndStatistics employed throughout. And the fans of each are still rabidly vocal. God help you if you're one of those who believed that the three brands are equally good- the fandom won't have it the other way and will barbecue you alive if you don't pick sides. The rivalry with power supplies, memory, and motherboards to an extent have died off. It's usually "just pick something from these companies".
* Don't forget the IBM [=PowerPC=] vs Intel Pentium feud! Though this one pattered out a bit out once Apple switched from [=PowerPC=] to Intel chips in 2005, but not before causing several small wars in the process and causing a split in the Mac fandom itself. Even today, there are still Mac enthusiasts arguing over whether Apple should have stuck with POWER-based Macs or if the move to Intel was a good choice.
* The Amiga community parallels this schism with whether the basis on [=PowerPC=] for "next-generation" Amiga platforms, specifically [=AmigaOS=] 4, was a good move, as the hardware required is rare, [[CrackIsCheaper increasingly expensive]], and older [=PowerPC=] Macs are generally ''not'' compatible, eliminating a much more affordable source of hardware for the new OS.\\
There's also the greater debate between [=AmigaOS=] 4, [=MorphOS=] and AROS being valid successors to the Classic Amiga platform or not; [=MorphOS=] actually does run on many G3 through G5 Power Macs, and AROS even runs on IBM-compatible x86 [=PCs=], making them far more accessible. However, some would say that the lack of the Amiga's signature custom chipset makes any of these successor platforms not a true Amiga, [[WhatCouldHaveBeen never mind that the planned Amiga "Hombre" project was a clean break with an A1200 on a chip solely for backwards compatibility.]]\\
Finally, there's the new Apollo Vampire FPGA accelerator line to further divide the already fragmented Amiga fanbase, which instead opts for binary compatibility with classic Amiga software with an in-house-designed 68080 core that leaves the old 68060 accelerators in the dust, [=ReTargetable Graphics=] with HDMI output, and attempts to recreate an enhanced version of the AGA chipset within the FPGA, bringing AGA compatibility to [=OCS/ECS=] systems and advantages such as Chip RAM amounts greater than 2 MB. Some prefer this approach to advancing the Amiga, as it still relies on the classic Amiga hardware (though standalone Vampire V4 boards are in the works), while others say it's missing the point of using a vintage computer in the first place.
* And now, there is a increasing fandom fight between ARM and x86 CPU architectures! Yeah, that's now because initially Intel (x86 architecture) and now AMD are targeting the same market ARM (nVIDIA, Samsung, Qualcomm, etc) is going for: tablets and smartphones. And despite both architectures performing similarly, some ARM fans says that ARM is a better solution since it costs less than x86 and is far more easily licensed out than x86, which only Intel and AMD can legally utilize, and which Intel considers a competitive advantage for being the basis of the [[UsefulNotes/IBMPersonalComputer Wintel platform]] and the decades of software compatibility that brings.\\
Some proponents of ARM are also playing the "ARM is RISC but x86 is CISC, and RISC is faster!" card, the same card played during the [=PowerPC=] Mac vs x86 PC era.\\
On the other side, x86 fans say that they have the help of Microsoft Windows, and with that, x86 has more uses than ARM, on top of the CISC vs. RISC distinction being totally irrelevant since the Pentium Pro, which uses an internally RISC architecture with an x86 instruction decoder for backwards compatibility. Then there's the matter of how the classic "Can it run ''VideoGame/{{Crysis}}''?" question can only be answered with an x86 PC...
* [[Creator/{{Apple}} iOS]] vs. [[Website/{{Google}} Android]]. The rivalry can make it hard to publicly admit having problems with your mobile device without being met with comments like "just switch to <other platform>!" In short, it's become the 2010s equivalent of the PC OS wars. Apple's keynotes in particular have turned into major chances for Android fans to rail on iPhones and their users for buying overpriced products with [[TheyCopiedItSoItSucks features that Android took up years ago]].
** Apple vs. Samsung (and to a lesser extent, Creator/{{Sony}} and other ACMEProducts companies).
** It's taken UpToEleven with the recent patent battle.
** And that's not all, whenever a chance arrives, both sides often take swipes with each other as much as possible.
*** Even within Android users, it's usually Google [=Nexus/Pixel=] vs. Samsung and everyone else.\\
Google fans point out that they get updates well before everyone else, they have no bloatware and their phones don't lag, ''especially'' compared to Samsung. In general, it's like having an [=iPhone=] without Apple's restrictiveness. Their bootloaders are even unlockable, so long as you avoid buying from Verizon.\\
Samsung fans point out that Google takes years to implement features Samsung has had years earlier, and often done worse (multi-windowing being one of the bigger examples), a lot of the alleged "bloatware" can be easily disabled and/or uninstalled, that Google's own apps can also be bloatware (some folks in the custom ROM community even opt for [=microG=] instead of Google Play Services for this reason), they still haven't removed the headphone jack, [=microSD=] slot, or added an ugly [=iPhone X=]-style screen notch, and in general, they want the Swiss Army knife of smartphones, ''not'' the [=iPhone=] of Android. This goes double for flagship Galaxy Note owners, as opposed to the more mainstream Galaxy S line.
** And then there are the people who use Windows Phone/Windows 10....
** Fans of Blackberry Classic vs. ''both'' Android and [=iOS=].
*** Even within the Blackberry fandom there's a split between Blackberry Classic and Blackberry 10. However, while the Blackberry 10 fandom shares the same [=iOS=] users rivalry with Classic, they have a [[FriendlyFandoms friendly fandom]] going on with Android users as Blackberry 10 devices are semi-Android friendly and can run Android apps. In other words, Fans of Blackberry 10 hate Classic for being a primitive OS lacking in functionality and it's fans for their stone-age ways of doing things and their borderline paranoid behavior, while fans of Classic consider fans of Blackberry 10 to be posers who would rather give up security for functionality, and the OS itself as yet another Android clone and is Blackberry InNameOnly. This has gone completely off-rails when Blackberry announced that they're leaving the hardware market and would license out their OS to other phone manufacturers.
* Application and game programmers have sometimes arguments of what engine/code language is better. Some examples:
** Flash vs. Game Maker. Flash and Game Maker have in common that they are both slow but easy to learn and to use. Flash exports .swf files, GM exports Javascript code that get's embedded in a <canvas> tag. It is quite easy to embed the output in webbrowsers, connect them with SQL databased and so on. But both party's do not want to see the potential of the other - Game Maker is known as being a 'engine only suitable for games like Mario'. Flash is to GM users known as 'a bugged code language that only works if you're lucky'.
** Flash vs. [=HTML5=].
*** Java Applets vs. Flash back in the late 90s and early 2000s. Although the acquision of Sun by Oracle and the constant exposure of exploits in the supposedly secure runtime in recent years has made Java Applets mostly relegated to corporate intranets and specific websites. Although back in the days, Java was also often criticized for being memory and CPU intensive.
** UsefulNotes/DirectX vs. UsefulNotes/OpenGL.
** UDK (a free version of the Unreal Engine marketed towards Indie developers) vs. Unity (another free/low-cost engine that is also marketed towards Indie developers)
** Irrlicht vs. [=Ogre3D=]
** Kinect vs. Move vs. Wiimote.
** Code::Blocks vs. Dev-Cpp.
** C# vs. C++ (barely a rivalry, but it does sometimes happen)
*** Java/C# vs. every other language ever.
*** Java vs. C# is also quite common, too
** Visual Basic .NET vs. people who think it is outdated.
*** Visual Basic .NET vs. classic BASIC (all caps, since it's a acronym).
** GOTO and GOSUB-RETURN vs Structured Programming. While this rivalry is rare nowadays as the latter is now universally accepted and the former is only still relevant in Assembly Language, through the 60s and 70s this was a war fought between two very vocal programmer groups[[note]]The group backing GOTO are those who believed programming languages should be left to real men and that people who cannot grasp the concept of [=GOTOs=], tight optimization and self-modifying code are not worthy of being called a programmer, while the latter group believes that code should be clearly written and easily debugged at the expense of processing complexity, arguing that computing power doubles every 18 months anyway. The arguments put forth by the former can be found in an essay called ''Real Programmers Don't Use Pascal'' which is widely available online. The arguments put forth by the latter can be found in the article ''Goto statement considered harmful''.[[/note]]
** SQL vs. Access
*** SQL server vs Oracle vs other paid Database server software.
*** [=MySQL vs PostgresQL=] is another common one among open source fans.
** .NET programmers (and the Microsoft stack in general) vs various open source communities
*** Building on this, Visual Studio (Microsoft's development IDE) vs. Eclipse vs. every other IDE is quite common
** Perl vs. Python vs. TCL vs the new kid on the block, Ruby.
* vBulletin vs Invision Power Board vs XenForo. Fans of one tend not to be fans of the others and there's quite the argument over which is better forum software. Same goes for phpBB vs MyBB vs SMF in the free forum world and free forum software vs paid forum software in general.
* With regards to instant messaging:
** The 1990s and 2000s brought us AIM vs. MSN vs. ICQ vs. Yahoo Messenger.
** In TheNewTens, this changed into AIM vs. Skype vs. Yahoo Messenger vs. Facebook Messenger when AOL bought out Mirabillis and merged ICQ into AIM, and Microsoft bought out Skype from eBay, and then subsequently retired MSN and forcefully migrated all it's users to Skype, and then Facebook decide to enter the market. There's also Google Chat, but almost no one uses that...
** The 2010s, with the advent of IM services tailored for mobile devices, has Kik vs. [=WhatsApp=] vs. LINE vs. [=KakaoTalk=] vs. [=WeChat=]. The former two tend to be bigger in Western countries, while the latter three are more popular in Eastern and Southeastern Asia, although [=WhatsApp=] does also have a sizable userbase in Southeastern Asia.
* Keyboards: QWERTY vs Dvorak. The most common point of contention is whether switching from the more popular QWERTY to Dvorak is worth the effort to achieve the claimed increase in typing speed.
[[/folder]]

[[folder:Theater]]
* The classic rivalry is Creator/JulieAndrews vs. Creator/AudreyHepburn for who is the best [[Theatre/MyFairLady Eliza Doolittle]].
* Among musical theatre fans, people who enjoy Creator/AndrewLloydWebber and people who like Music/StephenSondheim don't tend to like each other.
** This rivalry likely crystallized in the 1980s - Sondheim's shows won critical raves, numerous Tony Awards and even the Pulitzer Prize. Webber's shows made lots of money and developed enormous fanbases, as well as won a few Tonys of their own. Sondheim's seen as smart and meaningful by lovers, cold and difficult by haters ("the songs are absolutely unhummable!"); Webber's seen as emotionally thrilling by lovers, shallow and dumb by haters ("you walk out whistling the sets and costumes.") The 1988 Tony Awards may perfectly encapsulate this rivalry: ''Theatre/IntoTheWoods'' won the Book and Score awards, but ''Theatre/ThePhantomOfTheOpera'' won the Best Musical prize.
** Weirdly, though, the fandoms for the film versions of each of Sondheim and Webber's magnum opuses (''Theatre/SweeneyToddTheDemonBarberOfFleetStreet'' and ''Theatre/ThePhantomOfTheOpera'', respectively, which were filmed within three years of each other and both produced by Warner Brothers) overlap pretty strongly, much to the chagrin of the ''stage'' fandoms for ''either'' musical, who tend to view ''both'' films as inferior compared to their sources.
** Oh, but it gets worse. The stage-purist ''Todd'' fans are pretty divided over the original full-scale production and its symphonic spinoffs and the tiny, spare, 10-actors-playing-their-own-score production mounted on Broadway in 2005. Defenders of the original production call it a full-on Guignol-style thriller with sweeping music rendered beautifully by a full orchestra that gives richness and complexity to the score, while calling the mini-version a tasteless, pointless exercise in distracting Brechtianism that robbed the music of its depth. Fans of the 2005 production will say that ''their'' favorite version is a sexy, vicious little dark jewel of a show while the original was a cartoon full of exaggerated acting and (similarly to criticism of Webber's work, ironically enough) reliance on spectacle.
* If you leave Sondheim out of the picture, there's still Andrew Lloyd Webber vs. Frank Wildhorn, whom even people who don't particularly like Webber's works have characterized as an untalented pretender to Webber's throne. Wildhorn's own fanbase adores him and will defend him to the death against basically every other composer out there.
* Similarly, Stephen Sondheim vs. Jerry Herman fans. Jerry Herman fans tend to site Sondheim as "unhummable", "depressing", or "pretentious", while Sondheim fans tend to say Jerry Herman's stuff is "saccharine", "too cute", and "frivolous". Again, this is encapsulated in the results of an awards showdown: In 1984, Sondheim's ''Theatre/SundayInTheParkWithGeorge'' was successful enough that it won the Pulitzer Prize for Drama the following year...but in the meantime got curbstomped at the Tony Awards by Herman's ''Theatre/LaCageAuxFolles''.
* Classic musical theater fans (''Oklahoma!'', ''West Side Story'', ''My Fair Lady'', that sort of thing) vs rock/pop musical fans. Some classic fans will admit to liking ''Hair'', ''Godspell'', and maybe -- at a stretch -- ''Rent'' but that's about as far as they'll go.
* ''Film/JesusChristSuperstar'': Fans of the original 1973 movie vs. fans of the 2003 movie. Hippie Jesus vs Possibly Gay Ghetto Jesus? Decisions, decisions...
** Also, Murray Head as Judas (the original concept album) vs. Carl Anderson as Judas (the 1973 movie). And no, you may not answer Jerome Pradon.
* ''Theatre/LesMiserables'' vs ''Theatre/ThePhantomOfTheOpera'' is a strange case. There are many people who are hardcore fans of both, but sooner or later, you must choose which side your loyalties are on.
** Speaking of ''Phantom'', its fandom does not like ''Film/HighSchoolMusical'' very much, possibly due to the latter taking a snipe at Michael Crawford, the original Erik in the stage production and regarded as basically a saint in ''Phantom'' fandom.
* ''Theatre/TanzDerVampire'' versus its short-lived American counterpart ''Dance of the Vampires''. Notable in that even the composer himself has called ''Dance'' "utter shit" on his blog. Still, there are fans out there who like the American version for taking itself less seriously. A happy minority tends to simply sit back and explain that they think both versions have their high points.
* An example from a much earlier period in theatre history: Al Jolson vs. Eddie Cantor.
* Edwin Forrest and William Charles Macready, two rival Shakespearean actors from the 1840s. Read about them at [[http://www.cracked.com/article_19348_the-5-most-embarrassing-things-angry-mobs-have-rioted-over_p2.html this Cracked.com article]].
* Richard Wagner v. Giacomo Meyerbeer (Or Richard Wagner v. Johannes Brahms). Wagner's supporters will claim that Wagner's works were the conclusion of opera, magnificiently orchestrated, pushed singing to its limits and gloriously intricate in terms of plot. Wagners detracors will point to Wagner's unsavory personality, inability to spell, much less use, subtlety, tendency to fill everything with over-the-top Teutonic bombast, and inability to wrap up the simplest of plots in less than three hours. This particular fan feud has been running since Wagner was in his early thirties, has included numerous famous figures on either side (including UsefulNotes/FriedrichNietzsche on ''both'', having shifted from pro-Wagner to anti-Wagner over time) and has shown absolutely no sign of losing momentum.
* ''Theatre/SeventeenSeventySix'' versus ''Theatre/{{Hamilton}}'', mostly because the protagonists (UsefulNotes/JohnAdams and UsefulNotes/AlexanderHamilton) absolutely detested each other in RealLife. In spite of the fact that ''Hamilton's'' author, Lin-Manuel Miranda, is a big fan of ''1776'' and cites it as an inspiration for his own show, Hamilfans have been known to disreccomend it just because it stars one of the many guys who hated their guy. (Never mind the fact that neither ''Hamilton'' nor ''1776'' shy away from the fact that both men were hugely flawed and generally gave people ''reason'' to hate them.)
* Recently, there's been one between ''Theatre/Heathers'' and ''Theatre/MeanGirls'', with the former accusing the latter of being a ripoff.
[[/folder]]

[[folder:Toys]]
* ''Franchise/MyLittlePony'':
** For years there's been a ''Franchise/MyLittlePony'' vs ''Franchise/{{Transformers}}'' vs ''Franchise/CareBears'' rivalry.
** On the topic of ''My Little Pony'', one of the earliest battle-lines drawn was Bronies vs. old-time Collectors who collect G1/Tales/G3 toys for the sake of their love for little plastic horses. Many Bronies have nothing but contempt for pre-G4 figures, while said collectors diss G2/G3.5/G4 figures for not looking like horses. Needless to say it's quite rare to find people in these two camps that even talk to each other, much less actually get along.
** Then there's bronies who only collect show-accurate (non-Hasbro made) G4 ponies vs. the other G4 pony collectors. The former complain about how Hasbro's products [[ShowAccuracyToyAccuracy do not look like in the show]] and buy ponies from show-accurate toy licensees like Funko and Build-a-Bear, but never from Hasbro themselves. The latter thinks that the former is completely missing the point of collecting MLP, believing that since the franchise belongs to Hasbro, one should only be buying Hasbro ponies.
** Again, Bronies vs. Filly. Especially heated since many Filly fans are MLP dissidents who abandoned MLP due to the G3.5 ponies' designs.
* ''Franchise/{{Barbie}}'' versus ''Franchise/{{Bratz}}'', ''Toys/MonsterHigh'' versus ''Toys/{{Bratzillaz}}'', and by extension, Mattel versus MGA in general.
* ''Toys/{{Bionicle}}'' vs ''Toys/HeroFactory'', even though one was the replacement of the other. Bionicle fans hate Hero Factory for replacing Bionicle, and being more simple and childish, while Hero Factory fans think Bionicle is overly complex and doesn't allow room for new fans
[[/folder]]

[[folder:Web Original]]
* Website/ArchiveOfOurOwn vs Website/FanfictionDotNet. The former site was created specifically with the idea of hosting fanfics that the latter would have forbidden, which ranges from parodies to very explicit sex and gore. The fans of the former site criticizes the latter one for its stuck up policies, while the fans of the latter site disregard the former one as a den of perverts.
** By extension, Website/{{Tumblr}} fans, who shares many traits with AO3 has also started a rivalry with Fanfction Dot Net.
* Website/FourChan and Website/{{Reddit}}. In all fairness, the rivalry is a bit one-sided, Reddit seems to have some respect for 4chan, despite what comes out of there on a regular basis, whereas 4chan dismisses Reddit as a hipster and ultra-liberal circlejerk that ruined memes such as rage comics.
** This is due to the view of Reddit's detractors that Reddit's content is primarily gags and memes stolen from 4chan and driven into the ground (not to mention missing the point of said memes, robbing them of context necessary to the joke in the first place).
*** It's gotten to the point where 4chan, or at least certain boards, have essentially renounced memes, and are vehemently opposed to them as a concept, just because Reddit likes them. The creation of new humorous content is discouraged, just so that Reddit doesn't get anything new to steal.
** It has since evolved into 4chan vs. Reddit vs. 9gag. Where Reddit takes memes from 4chan and runs them into the ground, 9gag takes those and then slaps their watermark on it. Combine this with 9gag being connected to social media sites like Facebook has lead to the mainstream media to believe that 9gag created these memes. It has lead to both 4chan and reddit working together to attack 9gag as well as 4chan conducting solo raids on the site. Just mentioning 9gag on any board will result in the thread being saged into oblivion.
** It isn't Reddit vs. 4chan vs. 9gag anymore. It's Everyone vs. 9gag now. 4chan and Reddit (when they aren't taking pot shots at each other) are not above putting aside their differences to enact a joint raid on 9gag. Case in point, the 4chan--Reddit--[=FunnyJunk=]--Tumblr coalition enacting [[http://knowyourmeme.com/memes/sites/9gag#OperationDeepthroat Operation Deepthroat.]]
* There's a significant amount of vitriol between Website/SomethingAwful and [[Website/FourChan 4chan]], despite or perhaps because of the latter being a {{spinoff}} of the former, despite the fact that there are many users on both sites.
* [[Website/FourChan 4chan]] and Website/{{Tumblr}}. Tensions were cooled somewhat when the [[AnthropomorphicPersonification anthropomorphisms]] of the latter and Anonymous were shipped together. It's still one-sided to this day, however, with Tumblr holding respect for 4chan and 4chan dismissing Tumblr as an ultra-feminist hipster circlejerk filled with social justice warriors and very vocal fandoms that ruin everything.
* Website/{{Reddit}} and Website/{{Tumblr}} go at it frequently. Reddit users prefer their sites text focused interface whilst Tumblr users prefer their image sharing one. The two user bases clash over who's site layout is better, though there's usually disagreement amongst the users as to whether or not their own site's interface is even good. Most infamous are the clashing political ideas with Reddit viewing Tumblr as oversensitive and PC-orientated, and Tumblr viewing Reddit as having too many creeps and misogynists. The two sites propensity for echo chambers only adds fuel to the fire.
* Website/{{Reddit}} and Voat, especially after several controversial subreddits were deleted due the hate speech content, resulting in some Reddit users going to Voat for more freedom. Reddit users say Voat is a "Reddit clone for racists" while Voat users say Reddit is ruled by pro-censorship people and has no freedom of speech.
* WebVideo/RedLetterMedia and Website/ThatGuyWithTheGlasses. As for the creators themselves, Mike and Jay really don't care about the whole thing.
** Their fans, especially fans of Mr. Plinkett, have a rivalry with fans of the ''Film/StarWars'' prequels. This is because Mr. Plinkett gave the prequels very in-depth negative reviews which attracted ''Star Wars'' prequel anti-fans to his videos. In fact, his reviews of the prequels are his most well-known due to being shown on Creator/RogerEbert's website (who gave ''Film/RevengeOfTheSith'' a positive review) and tweeted by Creator/SimonPegg.
* Both WebVideo/TheAngryVideoGameNerd and WebVideo/TheNostalgiaCritic got very tired of the Fandom Rivalry that sprouted among people too stupid not to realize that their satirical feud wasn't SeriousBusiness, and soon new videos on the subject started to become more and more blatant about how they enjoyed each other's work and co-produced the competition just for laughs, in advance of angry commentors.
** On the other hand, most serious fans of the Nerd really do hate WebVideo/TheIrateGamer, who is seen as being an inferior rip-off and not confessing to such. Not to mention his SmallNameBigEgo.
*** It spills over into real life as well. Several of Rolfe's friends tore into Irate Gamer pretty bad in the AVGN comedy roast, so much so they spent almost as much time calling him a ripoff as they did staying on topic.
* Parodied by the Critic and WebVideo/TheNostalgiaChick in her review of ''WesternAnimation/TheChipmunkAdventure'', as they smugly argue over who has the creepiest, privacy-invading fans. [[TakeThatAudience It ends in a tie]].
* In Germany, it's Creator/{{Coldmirror}} fans vs. Die Außenseiter fans, both comedians on [=YouTube=].
* In Italy, there's the whole ''WebVideo/{{Yotobi}}'' debate. [=YouTube=] users [=SereINC=][[hottip:*: INC standing for Italian Nostalgia Critic]] and 2blugori have provided well-done FanSub[=s=] for the aforementioned ''[[WebVideo/TheNostalgiaCritic Nostalgia Critic]]''; however, many videos get often ''thrashed'' by Yotobi fans, [[UnknownRival as if]] the Nostalgia Critic [[FanDumb stole Yotobi's source material]]. Italian NC fans usually snark at them by shrugging every insult off, while calling them nothing more than "Yotobi fanboys". Hell, some of them even say "Yotobi fanboy alert" whenever one of them pops up. Never mind the two VideoReviewShow[=s=] are next-to-nothing alike.
* PlayedForLaughs by the ''Literature/SongOfTheSorcelator'' and ''Literature/EpicLegendsOfTheHierarchs'' "fandoms," who roleplay some really hysterical flame wars.
* ''WebVideo/YuGiOhTheAbridgedSeries'' versus, well, [[TheAbridgedSeries every other Abridged Series]]. Since Yu-Gi-Oh! was the [[TropeMaker original abridged series]] every following one got accused of being a copy cat. The ironic thing being that Creator/LittleKuriboh frequently lent his voice to other series, and even became a full time collaborator with Creator/TeamFourStar.
* [[{{WebAnimation/Benthelooney}} Ben T. Looney]] vs [[WebVideo/TVTrash Rowdy C]].
** Ben Rants/Benthelooney fans hate The Rowdy Reviewer because of the way his voice sounds on camera, and the fact that he mostly reviews things he grew up with and the way he voices his opinions, and The Rowdy Reviewer fans hate Ben Rants because of the way Ben voices his opinions, his retcons (Making his avatar into a cartoon character, contradicting previous opinions: Ala in the original and first run, he stated he was a 90s kid but in the revival, states he's a 2000s kid) and having at least more than one joke in every video since the revival.
* ''WebVideo/UltraFastPony:''
** Referenced in-universe. Discord breaks the mind of ''Literature/TheLordOfTheRings'' fangirl Pinkie Pie by shouting "''Literature/HarryPotter'' was better!"
** In real life, a vocal portion of ''UFP'''s fans hate ''WebVideo/FriendshipIsWitchcraft'' and feel the need to post youtube comments to that effect on the ''UFP'' videos. Not a ''large'' portion, mind you, just an annoyingly loud one. ''UFP'' actually has a few {{Take That}}s towards ''FIW'', but ''UFP'' creator Wacarb clarified (probably to discourage the haters among his fans) that he actually likes ''FIW'' and only pokes fun at them out of professional rivalry. Either way, the ''Friendship Is Witchcraft'' fandom doesn't seem to have noticed.
* Whilst it's true that the other side doesn't argue that much about it, there is still a persistent rivalry between youtube ranters and let's players. Youtube ranters and their fans often complain say that let's players are unnecessary and a waste of time (because why would they watch someone playing a video game if they can play the same game at home). Fans of let's players however still watch them despite it because they can learn more about the game and let's players can give some fun commentary. Over time, many fans of Let's Players blame youtube ranters for being hypocritical, since they say that playing a game while talking about something is bad while they are talking in front of their own camera.
** It's not a surprise that most of the hatred is directed towards LetsPlay/PewDiePie. He's the most famous guy to hate on because they can still be sure that their channel gets a lot of views because of it. The typical accusation directed towards him is however a broken argument he once said, which goes like this: "If you don't like it, don't watch it" and which his fandom keeps shouting at the haters, despite the fact that most of them don't even know what they are saying.
* The entire Internet vs. [[UsefulNotes/FurryFandom furries]].
** The furry thing can be split even more: those who prefer clean, non-sexual furries and the hentai {{yiff}} crowd.
*** People who like humanoid characters vs feral ones.
*** People that consider the fandom to be a hobby and/or fetish and nothing more, versus people that consider the fandom to be a lifestyle. The former often calls the latter 'delusional', while vice versa the latter calls the former 'un-invested'.
* Bronies vs. the internet. Or Furries and Bronies. See the page on the UsefulNotes/FurryFandom for some elaboration on the Bronies vs. furries.
* Wiki/TVTropes vs. Wiki/{{Wikipedia}}, although there's [[DrPediaAndMrTrope clearly an overlap in users]].
* Social network websites do this quite a bit: Website/{{Facebook}} vs. Website/{{Twitter}}, Website/{{Blogger}} vs. Website/{{Tumblr}}, and more recently, Facebook vs. Google+.
* Website/{{Uncyclopedia}} vs. Encyclopedia Dramatica.
* From the LetsPlay/{{Yogscast}}:
** The Yogscast used to get on well with WebVideo/GameChap, collaborating frequently and then accepting the latter as members. The fandoms went from [[FriendlyFandoms friendly]] to this trope after the latter rudely responded to some fan criticism on the Yogscast subreddit, [[RoleEndingMisdemeanor which was the last straw and got them kicked out the group]]. Nowadays, mention either of them on the other's sites or forums and you'll be met with scorn, or in the case of the latter, you'll be banned, rudely insulted ''and'' met with scorn. This is particularly the case with LetsPlay/HatFilms, who have turned Gamechap into something of a running gag online.
** Fans of [[Creator/TheCynicalBrit TotalBiscuit]] and Yognau(gh)ts mostly get along (as do the creators for the most part), but the former has criticised the latter a few times, leading to more minor versions of this trope. [[VitriolicBestBuds These are mostly minor hiccups as far as fans are concerned]].
*** And in turn, [=TotalBiscuit=] fans and WebAnimation/ExtraCredits fans don't get along very well due to their being on opposite ends of the political spectrum.
** While fans of LetsPlay/NerdCubed and LetsPlay/InTheLittleWood mostly like each other due to their collab series, Yognaughts and Procrastinators have a somewhat uneasy coexistence. As with TB, there is still a large degree of overlap, so it's not an outright rivalry.
** Due to the somewhat heated disputes between LetsPlay/InTheLittleWood and "Keemstar" (of "Drama Alert" infamy) over issues such as Sam Pepper and Bashurverse, as well as Keemstar hitting on Martyn's girlfriend Kaeyi, fans of the two do ''not'' get along.
* Fans of WebVideo/GameChap, aside from the aforementioned issue with the Yogscast, are now on bad terms with the ''VideoGame/{{Minecraft}}'' community at large, whereas before they were still fairly popular. This is partly due to Gamechap's starting a Twitter war with Marc Watson of Mojang over [[CowboyBebopAtHisComputer 500,000 accounts initially being hacked (when in reality that was not the case)]], silencing those speaking in favour of the ''Pixelmon'' mod (which had come under fire for controversial coding) and then not crediting an animator for his work on the bunny hopping animation.
* Due to the sexual abuse scandal on Youtube, many formerly FriendlyFandoms are now bitter rivals, such as the fandoms of WebVideo/{{Charlieissocoollike}} and Creator/AlexDay (or at least any fans Alex has left at this point).
* In Russia, ''+100500'' fans vs. ''This Is Horosho'' fans. Both of them are viral video reviews similar to Ray William Johnson's ''Equals Three''; however, their approach is different. TiH fans see Maxim Golopolosov, +100500 host, as a SirSwearsALot punk who only repeats the phrases from reviewed videos; +100500 fans, on the other hand, see their rival as their ripoff (given that TiH started month after +100500) and its host, Stas Davydov, as someone cracking unfunny "elitist" jokes. Then there's [[TakeThat the fact both shows took jabs at each other a couple of times.]]
* ''WebAnimation/DeathBattle'' vs. [[https://www.youtube.com/user/ClassicGameGuys ClassicGameGuys]]'s ''Fatal Fiction''. ''Death Battle'' is also fairly notorious for ''causing'' these due to the nature of the show and [[InternetBackdraft the nature of the internet]], as several viewers are prone to taking their favorite character's defeat and subsequent death very poorly indeed. [[spoiler:Such as Goku losing to Superman]] being one of the most unabashed examples of this in the whole series.
** Sometimes ''Death Battle'' plays on existing ones. Best example being [[VideoGame/{{Overwatch}} Tracer]] vs. [[VideoGame/TeamFortress2 Scout]].
** Thrown in the mix is another VS series called [[https://www.youtube.com/playlist?list=PLDnA2vWbj2DR0s99ULfGbWCv95aTLv7zS Cartoon Fight Club]] made by Animation Rewind, notable for being newer and having lower budget animations. Doesn't help that the creator's annotations and description for every video has "Not Screwattack or Death Battle teehee/Huehuehue".
[[/folder]]

[[folder:Other]]
* Although mainly because of political reasons (and not on the internet, but rather an actual rivalry, with fighting), traditional Oi! skinheads and antifascist punks vs neo-nazi boneheads (who call themselves skinheads)
* Theists vs. atheists. Someone was going to say it.
** And (to a certain extent) [[TakeAThirdOption agnostics]].
** This also applies to the countless interreligion and intra-religion feuds.
* W.E.B. [=DuBois=] followers vs Booker T. Washington supporters. Both were early civil rights leaders, but could hardly be more different in their ideas. Washington urged black Americans to learn a trade and become part of the working class, where their buying power would naturally bring them into acceptance within white society. [=DuBois=] urged black Americans to study literature and the arts, embrace their cultural roots, and demand equal rights through fierce political action. Washington and his followers argued that [=DuBois=]'s strategy was too unrealistic and abstract, while [=DuBois=] and his followers accused Washington of perpetuating the blacks' low social status.
* Among wineries, there's Napa Valley vs. France.
** Also Napa and the neighboring Sonoma Valley.
* Low-calorie fans vs. low-carb fans. (And by extension, saturated fats vs. unsaturated fats, vegetarians vs. omnivores, etc.)
* Coke fans vs. Pepsi fans.
** Who are united, however, against foolish people who insist the drinks taste the same.
** And then there's [[TakeAThirdOption Dr. Pepper]].
*** The real rivalry there is Dr Pepper vs Mr Pibb.
*** Along with all the other generic drinks.
* UsefulNotes/McDonalds fans vs. Burger King fans.
** Also [[TakeAThirdOption Wendy's]].
** Said restaurant rivalry does not apply in the Philippines, where UsefulNotes/McDonalds has to contend with a certain red fat jolly bee.
* White Castle vs Krystal.
** To the extent that there is/used to be a billboard just across the Tennessee/Kentucky state line on I-65 North advertising "Last chance for Krystal" ahead.
* UsefulNotes/KentuckyFriedChicken vs. Popeyes vs. (if applicable) Churches vs. Browns[[note]]once again, if applicable[[/note]], vs. Harolds.
** In Australia, KFC vs Red Rooster vs Nando's.
* Five Guys vs. In 'N' Out.
* Domino's vs. Pizza Hut.
** And in certain areas, both of them vs. Papa Johns. Little Caesars joins in as well.
* [[ThisIndexMeows Cats]] vs [[ThisIndexBarks Dogs]].
* "Normal" pets like dogs and fish vs more obscure ones like rats, ferrets, or iguanas.
* Franchise/{{LEGO}} fans vs. Mega-Bloks and to an extent, Kre-O and, to a lesser extent, LEGO fans vs. all other building block toys. Not sure how strong this is on the non-Lego side, but on at least one Lego fansite, the names of other brands like Mega-Bloks and Tyco are used as replacement swearwords.
* [[SubbingVersusDubbing Subs vs. Dubs.]] It had to be mentioned.
** Alternatively, in the world of Spanish dubs, [=LatAm=] vs Spain.
* Tea and coffee.
* Coffee and energy drinks. Coffee is seen as not packing enough punch and for tasting nasty and requiring lots of sugar and other condiments to be palatable to many. Energy drinks are seen by coffee fans as being too sugary on top of having worse potential side effects than coffee.
* X political party and Y political party, ''anywhere''. It's particularly pronounced in the U.S. with the two-party system.
** America actually has more than two parties but you probably wouldn't know that since only the Democrats and Republicans get any attention. This leads to the always-painful liberal vs. conservatives.
** And within the Republican party, moderates vs. Tea Partiers. It's gotten to the point that [[DefeatMeansFriendship unity events]] are being canceled. And of course the Tea Partiers are just going to fire up the Democrats.
** And within the Democrats, it's moderates vs. progressives. The 2016 primary between UsefulNotes/HillaryClinton and Bernie Sanders was a showdown between the two. The two groups continue to snipe at each other, with each side blaming the other for Clinton's loss in the general election.
** In America, the rivalry may exist more due to problems of in-group/out-group identification than actual differences, making this a sad case of manufactured rivalry.[[note]] There are two views of party composition: either bipolar (two huge blocs at each side of the spectrum and a small number of independents/undecideds/apathetics) or unipolar (traditional bell-curve: the majority of people fall somewhere in the middle, and as you move toward the extremes of either side, numbers drop off). Each view favors different strategies -- if you believe the bipolar model, you antagonize your base by driving them to the polls for state issues (this was Karl Rove's strategy in 2004, when many states voted on gay marriage); if you believe the unipolar model, you build a platform around appealing to as many people as possible and avoid extreme stances. The problem (and rivalry) can be partly explained by the fact that the most extreme voices are often the loudest and election math: not every district is hospitable to moderation, nor is every state. What helps a candidate win a Senate seat in California may backfire spectacularly in Ohio. House races are even worse due to gerrymandering. State races are also tricky, as "conservative" and "liberal" vary by location, and sometimes state officers (particularly governors) are put in a position where throwing the national candidate from their party under the bus is the better move. This is one reason candidates have an incentive to favor rhetoric over actual policy proposals. Third party candidates often criticize Democrat-Republican races as a choice between the same thing in different packaging.[[/note]]
* [[RailEnthusiast Railfans]] tend to strongly dislike bus fans and bus transportation in general due to the mostly correct perception that buses killed the majority of streetcar, commuter and long distance rail passenger services across North America. Most railfans will choose to walk long distances to avoid having to ride a bus.
** Similar to the bus issue, some railfans (or people who just prefer traveling by train) will hate airlines because they think flying is a bigger hassle than rail travel or because in the second half of the 20th century the rising popularity of airlines resulted in a major downfall for passenger rail service.
** Union Pacific vs. Burlington Northern Santa Fe and CSX vs. Norfolk Southern, especially their predecessors and purchased railroads. Also other smaller/defunct railroads vs. the aforementioned railroads.
** New York Central vs. The Pennsylvania Railroad is still a big one despite both railroads being out of business since 1968.
** EMD vs. General Electric Transportation vs. defunct locomotive manufacturers (Baldwin for example).
* Knitting and crochet. Seriously.
** And in each of those, but especially in knitting, natural-fiber versus novelty-yarn.
* Firearms:
** In the US, debates rage between fans of the AK-47 (and to a lesser extent, other AK derivatives) and the M-16 (or the civilian version, the AR-15). This is also partly due to the huge political and cultural aspect, as the AK has been often the gun of America's enemies, like the Russians and other communist countries, while the M-16 has been the gun of America. That [=AKs=] were used against M-16s in the UsefulNotes/VietnamWar also is a big point, often brought up in debates/flame wars.
** For handguns, the pre-eminent rivalry is undoubtedly 1911 vs. Glock. They could not be more opposite: the 1911 is a single-stack, heavy, all-steel, single action only hammer-fired gun with multiple external safety features (with both a thumb and a grip safety), while Glocks are double-stack [[labelnote:note]]Single-stack Glocks didn't exist until the Glock 36 was released in 2000, and it took another 14 years before Glock came out with another single-stack model with the G42[[/labelnote]], polymer-framed, lightweight, striker-fired guns with no external safeties (it has a trigger safety, which means it only fires if the trigger is pulled all the way back). And these two models also serve as stand-ins for the larger debate between polymer vs. metal framed pistols: Despite the fact that polymer guns have taken over the firearms market for civilians, law enforcement, and military, there are still lots of people who will swear by steel only and have no time for "plastic" guns, while those on the other side look at the 1911 and its contemporaries as obsolete relics from a by-gone era.
*** And if you thought that was bad, there's the other big debate with pistols: what's better for concealed carry/self-defense, revolvers or self-loaders?
** Leading into all of the above are the Great Caliber debates. 5.56mm or 7.62mm? 9mm or .45? .357 or .44? Speed or size? You will see fans of any popular caliber swearing by their favorites and deriding anything else as inferior.
** To a lesser extent, shotgun fans are divided between Mossberg and Remington, especially for pump-action, and there is further debate between whole pump vs semi-auto shotguns for home defense and competition shooters. For hunters and clay shooters, this is also further extended between double-barrel break action-shotguns: side-by-sides or over/unders?
* Obligatory hentai examples:
** Yaoi fans: There are the ones who like the effeminate boys, and the ones that like [[{{Bara}} muscular guys]].
** Straight shota vs. yaoi shota.
** [[HetIsEw Yuri fans vs. male het fans. And yaoi fans vs. female het fans.]]
** Yaoi and/or yuri fans versus het fans.
** Yuri fans vs yaoi fans. Even at times, male yuri fans vs female yuri fans.
** And of course RuleThirtyFour vs. fans who don't want to see their favorite shows as sexual.
* Not even theoretical physics is immune from this; the most famous example (currently) is proponents of string theory vs. proponents of other theories, with the latter accusing the former of playing unfalsifiable, unscientific mathematical parlour .
** Every science has this, in fact. For example, psychology had [[AllPsychologyIsFreudian psychoanalysis]] vs. behaviourism at its outset, then behaviourism vs. cognitive psychology, then all of the above vs. evolutionary psychology and so on. And then there's [[HardOnSoftScience hard (natural) science vs. soft (social) science]], with people in the hard sciences accusing their softer brethren of being [[HowUnscientific pseudosciences]] and people in the soft sciences accusing them of being smug elitists in turn. And then there's science people vs. arts people, whom they accuse of getting ADegreeInUseless.
** While on HardOnSoftScience, college students might get into some heated arguments: exact sciences vs. human/social sciences, exact sciences vs. biological sciences, law school vs. the other humanities...
* When Brazilian movie magazine ''SET'' was sold to a different publisher, one of the editors [[StartMyOwn started his own publication]], ''Preview''. Then his old boss returned to ''SET''. The magazines have since started a rivalry, particularly fueled by the fact that ''SET'' suffered from chronic ScheduleSlip until it ceased publication (''Preview'' fans even call her "The Dead One").
* As mentioned in the Sports section below, St. Louis and Chicago already have a baseball rivalry but this extends to the two cities themselves since they are basically the two major cities fighting over [[FlyoverCountry the center of the country]]... Kansas City being a possible third option.
* Boeing vs. Airbus. This one's ''real'' SeriousBusiness--after all, the former's biggest fanboy is a certain scholarly gent who goes by the name of Uncle Sam, while the latter has a major fangirl in Europa (no, not the moon of Jupiter). Boeing fans claim Airbus is an upstart company with a crummy name, that gets an unfair leg up with preferential loans from the EU. Airbus reply that Boeing is NotSoDifferent, and is only kept afloat by Pentagon pork and US diplomatic pressure on countries to make their flag carriers buy it. Of course, this mirrors the fact that the companies themselves ''utterly loathe each other'', to the extent that Boeing ignored [[CassandraTruth Airbus's warnings over the 787 battery fiasco]], believing them to be a sneaky plot. This rivalry ranges from mutual bitter WTO disputes, to hilariously bitchy [[http://www.bloomberg.com/news/2012-11-26/airbus-ads-jab-boeing-on-new-jets-as-planemaker-rivalry-sharpens.html advertisement]] [[https://www.youtube.com/watch?v=9TbRyhLJqT0 wars]].
** Aviation enthusiasts also do this with airlines: United vs. Delta, British Airways vs. Virgin Atlantic, etc.
* Reason vs FL Studio vs Ableton Live vs whatever other DAW.
* In the dinosaur fanboy community, one of the biggest debates involves who would win in a fight between ''[[TyrannosaurusRex Tyrannosaurus]]'' and ''[[AlwaysABiggerFish Spinosaurus]]'' (two of the largest carnivorous dinosaurs), with both sides involving fanboys who constantly think of reasons that their theropod is bigger or stronger while bashing the other. The feud probably started because the ''Spinosaurus'' replaced the ''T. rex'' in ''Film/JurassicParkIII''. Things get worse when the carcharodontosaur ''[[TakeAThirdOption Giganotosaurus]]'' gets involved, with fanboys practically doing the same thing as the other two carnivores. In fact, it would probably extend to a battle of ''any'' of the largest carnivorous dinosaurs.
** Many other animals are victims of fight match ups too, for example for the biggest crocs, there's gharial-like pholidosaur ''Sarcosuchus'' and the alligatoroid ''Deinosuchus'', [[UsefulNotes/PrehistoricLifeNonDinosaurianReptiles even if there were many other crocodyliformes about the same size as them]].
** Then there's the battle of the largest marine predators, giant shark ''Carcharodon megalodon'' and the pliosaur ''Liopleurodon'' (even though the latter wasn't even that big, about 7 metres long, because ''Franchise/WalkingWithDinosaurs'' [[CriticalResearchFailure based the 25 metre long depiction off incredibly fragmentary remains]]).
* [[ArtisticLicensePaleontology Hardcore palaeontology enthusiasts]] vs. people who like [[RaptorAttack featherless dromaeosaurs]] (and other dinosaurs which are thought to have been feathered).
** Paleontology fans vs. cryptozoology fans. Some try to find a healthy balance, but sadly the majority of paleo-nuts like to call crypto-nuts "delusional", while crypto-nuts call paleo-nuts "closed-minded".
* Related to various parts of the the above, Darwinian evolutionists (including theistic evolutionists) vs creationists. Intelligent design is somewhere in the middle, accepting macroevolution but with a religious overtone.
** The young-earth vs. old-earth debate, which is very related, focuses on geology and astronomy rather than biology.
* If an American city has a kind of [[UsefulNotes/CuisinesInAmerica food]] it's famous for, this is bound to happen:
** In UsefulNotes/{{Philadelphia}}, there's the cheesesteak, with the most well-known being Pat's Steaks vs. Geno's Steaks. Most actual Philadelphians actually eschew both, leaving them for the tourists, but still argue over which of the various alternatives they prefer (common ones include Jim's Steaks, Tony Luke's, and John's Roast Pork--which is more famous for its cheesesteaks. Some in nearby South Jersey might also throw in Donkey's Place in Camden, but being that Camden is um, [[{{Gangsterland}} Camden]], it doesn't get mentioned much even though the steaks are good.)
** In UsefulNotes/{{Chicago}}, there are innumerable claimants to the title of best Chicago deep dish pizza. A few places are more popular than others, but the only thing that most aficionados can agree on is that Pizzeria Uno--the unquestioned originator of the modern style--is no longer in the running (having turned into a national chain).
** In UsefulNotes/{{Michigan}}, we get a layercake of rivalry respecting the Coney Island hot dog (a kind of chili dog that has nothing to do with the place in Brooklyn): First, there's a rivalry between Detroit-style dogs (which have a wetter chili) and Flint-style (which have a drier chili) as well as Jackson-style dogs (which claims Flint stole its recipe). Second, there's arguments within both the Detroit-style (American and Lafayette Coney Islands) and Flint-style (Angelo's and Starlite).
* Kids vs. no kids. Some parents think it's their job to convince childless by choice people that [[BabiesMakeEverythingBetter they'll change their minds if they have kids or are around them]], while conversely, too many childfree people think it's okay to mock and belittle those who do choose to have kids, to the point some more extreme types are full-on {{Child Hater}}s.
* In the world of pinball, Creator/WilliamsElectronics vs. Creator/MidwayGames vs. Creator/DataEast, even after Williams bought Midway (Bally was its pinball label) in 1987. When all three left the pinball business in 1999 leaving only Creator/{{Stern}} Pinball (see above), fans of all three companies ganged up on hating Stern and its fans. The current changed beginning in 2012, however, with a series of critical hits from Stern that led to a new appreciation of previously maligned Stern machines. With few people in pinball caring about the manufacturer now, the largest points of contentions are:
** Modding: Is it acceptable to replace incandescent lights with [=LEDs=] on machines built before [=LEDs=] became standard? Are [=LEDs=] too bright for use in darkened locations, such as bars and private game rooms, or do they provide much-needed light for easier viewing? Is putting decals on certain things okay? Is bringing in a decoration from another pinball machine a playful show of humor or blasphemy against the machine and its makers? How much should one spend on modding? Should one even mod a pinball machine at all?
** [[TheProblemWithLicensedGames Licensed themes]]: There are groups that desperately want unlicensed machines, there are groups who are waiting for someone to make a pinball machine with a specific theme, and there are groups who are glad to see anything made at all and appreciate it when there's a theme they like but aren't dedicated fans of. This problem came to the forefront with the release of ''Full Throttle'', the first unlicensed major release in 15 years, whose reception was lukewarm compared to surrounding releases.
** Depiction of women: The release of ''Whoa Nellie! Big Juicy Melons'' from Stern prompted an outcry over Stern's social media pages over its misogyny and blatant MaleGaze. Stern accidentally fanned the flames by removing posts and comments criticizing said misogyny while, at the same time, IFPA, the largest tournament organization, announced women's only division for its major events. This has created a schism between women and male feminists vs. men (and a few women) who like the sex appeal of tables like ''Whoa Nellie!''
* In the roller coaster industry, there are several: for steel coasters, there is Bolliger & Mabillard vs. Intamin, and Schwarzkopf vs. Arrow Dynamics. For wooden coasters, there is the Gravity Group vs. Great Coasters International vs. Rocky Mountain Construction.
* Krispy Kreme versus Dunkin Donuts is a common debate. Don't get Starbucks or Tim Hortons into the argument or you'll really have a brawl. And heaven forbid that your local coffee shops get in the mix.
* Tabasco sauce vs. Sriracha sauce. Fans of both agree on one thing at least: That hot sauce goes on everything.
* Fresh ramen vs. UsefulNotes/RamenAsDehydratedNoodles. Fans of the former look down on instant ramen for being nothing compared to fresh ramen, while fans of the later defend its comparatively super-cheap cost and availability since not everyone has the budget to spend money to go to a ramen shop or the geographical proximity to one (especially if one lives outside of Japan).
* Among guitarists, there are diehard fans of Gibson and Fender. More specifically, there's a lot of discussion about both companies' flagship models, two of the most iconic guitars of all time: the Gibson Les Paul and the Fender Stratocaster.
* For a long time, amateur radio vs.[[HollywoodCB CB]]. CB was a direct competitor to ham radio for newbies because it allowed users to communicate by voice, while beginning hams were limited to Morse Code. Also, the FCC placed the CB channels on a frequency band that had previously been assigned to hams (but was little used, which was why they took it away). Hams viewed [=CBers=] as riff-raff, [=CBers=] viewed hams as snobs. The decline in CB popularity plus the addition of some voice privileges for Novice Class hams in 1987 basically ended the rivalry.
* There are two advocacy groups for the blind in the US: The American Council of the Blind, and the National Federation of the Blind. They have very different philosophies on how to integrate blind people into society. In general, the ACB thinks society should change to accommodate blind people, whereas the NFB thinks blind people should adapt to society as it is where possible. To outsiders, the NFB can seem radical and strident (they once campaigned against tactile currency because 'blind people can handle money just fine as is', while the ACB can seem whiny and needy. So strong is their mutual hatred that they schedule their national conventions at the same time, so you can't go to both.
* This applies to some people who liked their favourite holiday wia th passion but hate another holiday with a vengeance and there are several of them: Christmas vs. Halloween, Valentine's Day vs. St. Patrick's Day, Easter vs. April Fool's Day, etc.
[[/folder]]

* Franchise/TeenTitans vs ComicBook/YoungJustice. This one began when [=DC=] decided to restore the classic Wolfman/Perez Teen Titans - and did so by taking the current Teen Titans and Young Justice books and merging them together. The transition was, shall we say, less than seamless. Young Justice fans were upset because their LighterAndSofter book had been cancelled, with favorite cast members PutOnABus, and some of the survivors being written as far different characters. Teen Titans fans were upset because they had also lost favorite cast members (and two of them were killed), and now their book had been taken over by what they considered to be a SpotlightStealingSquad, the [[FanNickname YJ4]]. Being upset over the same thing, but for different reasons, a rivalry sparked. Sometimes more fuel gets tossed on the old fire, such as the [[WesternAnimation animated]] adaptions trading tones, or the ComicBook/{{New 52}} having no sign of the original Kid Flash or Wonder Girl.
* ''Comicbook/CrisisOnInfiniteEarths'' divided the Creator/DCComics fandom between fans and haters of the Pre-Crisis [[TheMultiverse multiverse]], mostly depending on whether you began reading comics [[UsefulNotes/TheBronzeAgeOfComicBooks before]] or [[UsefulNotes/TheDarkAgeOfComicBooks after]] the [[CrisisCrossover crossover]]. Discussions between this two groups could become pretty nasty at times.

** This dispute is now further complicated by the ComicBook/New52 reboot, which means that the DC FanDumb is now divided into three camps: Pre Crisis; Post Crisis/Pre-New 52; and Post New 52.

* ''ComicBook/AvengersArena'' vs. ''Comicbook/{{Runaways}}'', ''ComicBook/AvengersAcademy'', and ''Sentinel'' fans (despite Arena featuring characters from all of those comics). Basically Arena is a ContestedSequel to those comics with the AudienceAlienatingPremise of the ''Film/TheHungerGames''[=/=]''Film/BattleRoyale'' meets the [[KidHero youth of the Marvel verse]]. Fans of the characters mostly hate Arena and its [[CannonFodder Kill the C listers]] premise, along with its fans who don't seem to care about [[TheyWastedAPerfectlyGoodCharacter characters from critical darling books being wasted]] in a FollowTheLeader book, while fans of Arena for the most part just want to enjoy the story without being bogged down by countinity or having to listen to Academy and Runaways fans complain about the deaths.

** And then there are fans of ''Deathmatch'' - Creator/BoomStudios series with similiar premise of superheroes fighting each other to death, that had been announced some time after ''Arena'', leading to many accusations of [[FollowTheLeader stealing the idea]]. Which was unlikely, because ''Deathmatch'' appeared way to quickly after ''Arena'', and writer Paul Jenkins said the sole reason he went to do ''Deathmatch'' at Boom! was that he thought neither Marvel or DC would let him publish book like this under their banner. Fans of ''Deathmatch'', when faced with accusations of "stealing" from Arena either point out they don't really have that much in common or embrace it and say that yes, ''Deathmatch'' does the same thing as ''Avengers Arena''. Only better.

* Fans of post ComicBook/{{Annihilation}} Cosmic Marvel and fans of Creator/JonathanHickman can get quite vocal against each other. It generally boils down to whether you like Hickman's stories enough to pass on the fact he quickly undid everything Creator/DanAbnett and Andy Lanning established for many characters and teams, that didn't fit his vision.

* Franchise/XMen fans vs [[ComicBook/TheInhumans Inhumans]] fans. Originally the two didn't mind each other, but after a massive marketing push by Marvel billing the Inhumans as "the next big thing!", the two seemingly can't stand each other. This stems from the Inhumans going from their own unique thing to being SuspiciouslySimilarSubstitutes for the entire mutant race, which many feel is because of Marvel not owning the film rights to the X-Men.
** There's also fighting over the writer of the main ''Inhuman'', and later ''Uncanny Inhumans'' series, Charles Soule. With the announcement that Brian Michael Bendis would be leaving the X-books, and the lack of any announcement on who would follow him, or even if a new X-book will exist, many X-fans want Charles Soule on the X-books. This is due to him already being a fan favorite writer, and the fact that he penned ''Death of Wolverine''. This hope got thrashed by the ComicBook/AllNewAllDifferentMarvel announcements (X-Books are by various writers but Jeff Lemire got two and is the main X-writer, while Charles Soule still writes the main Inhumans book, and is even getting ''another'' one: ''All-New Inhumans''), but Soule ''would'' eventually write ''ComicBook/AstonishingXMen'' once he left the Inhumans books (though by this point, ''neither'' fandom particularly wanted him).

** Pre-Flashpoint Superman fans vs New 52 Superman fans. Many fans of pre-Flashpoint Supes hate that the New 52 Superman is an angry, violent Superman who dates Wonder Woman and wears an armoured costume. Fans of the New 52 Superman think the old Superman is a cheesy boy scout whose relationship with Lois Lane was played out and that his costume was embarrassing. The comics eventually sided with the pre-Flashpoint fans, revealing that New 52 Superman (and Lois) was only half a character, and merging them with the married Lois and Clark who survived the previous universe. As of ''Action Comics'' #1,000, even the trunks are back!

* For ''Franchise/TheFlash'', it's Barry Allen fans vs. Wally West fans. There are some Barry fans who never accepted his death and will always see him as the one true Flash, and dislike Wally's dickish attitude when he started out (older Flash fans may be fine with Wally but still tend to think of him as ''Kid'' Flash while Barry is the ''real'' Flash). Wally fans were fine with Barry at first (aside from those who found him boring), but after his return and the resulting demotion of Wally, they started hating him. Both sides tend to be feel pretty positively about Jay Garrick, who is the Cool Old Guy and Honorary Granddad to all speedsters.

** Because they were both superhero movies released in 2008 that became extremely successful, a small rivalry developed between fans of ''Film/IronMan'' and ''Film/TheDarkKnight''. While the rivalry seemed to be pretty friendly (most fans were too happy to get '''two''' good superhero movies in one year and saw both), a small faction seemed to need to bolster their favorite movie by bashing the other. ''TDK'' fans accused ''IM'' of being a standard issue Marvel popcorn flick with an over-hyped Creator/RobertDowneyJr. ''IM'' fans hit back by saying that ''TDK'' was a [[DarkerAndEdgier brooding, pretentious]] movie that forgot it was supposed to be fun, and featured an over-hyped ([[DeadArtistsAreBetter and dead]]) Creator/HeathLedger.
** The [[Creator/MarvelComics Marvel]] vs. [[Creator/DCComics DC]] rivalry probably didn't help.
** It seems that the overarching Franchise/MarvelCinematicUniverse now has a rivalry with the entire Film/TheDarkKnightSaga since ''Film/TheDarkKnightRises'' is going to be released around the same time as ''Film/{{The Avengers|2012}}''.
** The original ''Film/SpiderManTrilogy'' and ''[[Film/XMenFilmSeries X-Men]]'' films have seen an influx of ''Dark Knight'' fans flooding message boards since those movies are often seen as some of the best comicbook movies, regardless if the films are still being made or not.
** ''Film/{{Avatar}}'' and Dark Knight fans have fought over whether or not one film deserved more Oscars than the other (mentioned more in depth below).

*** Add ''Film/SuicideSquad2016'' 's '''Creator/JaredLeto''' to '''THAT''' mix . . .
** And yet another one-sided rivarly has sprung up with TDKS fans trolling ''Film/TheHobbit''-related message boards, apparently since ''The Dark Knight Rises'' is geared to be the big film of 2012 alongside ''The Hobbit'. So far, most Hobbit fans seemed more dismayed than anything. Of course, a couple of years later, people saying ''anything'' good about ''The Hobbit'' series are few and far between.
** ''Film/TheAmazingSpiderMan'' is also set to come out in the same season, resulting in Dark Knight fans trolling their boards as well.
** There's also a rivalry between ''Film/TheAmazingSpiderMan'' and ''Film/{{The Avengers|2012}}'', even though they're both Marvel properties.
*** To be fair, the movie rights (at the time) weren't Marvel properties and Marvel fans view Spider-Man as an AshCanCopy. The mixed reception to the second Amazing Spider-Man lead to Sony striking a deal with Marvel and now Spider-Man is slated to appear in the MCU.
** At least amongst the Website/IMDb boards, Dark Knight fans have also [[{{Troll}} trolled]] the boards for ''Film/TheShawshankRedemption'' and ''Film/TheGodfather'' films due to those films being rated very high on that website while ''Film/TheDarkKnight'' is rated (very slightly, mind you) lower. Fans of those movies seem more befuddled than anything and quickly contacted the admins to avoid a FlameWar.
*** It has now gotten to the point where many fear that this behavior will do nothing but harm the box office returns for ''Film/TheDarkKnightRises'' and the popularity of the series as a whole.
** Now there appears to have a rather absurd rivalry ''within [[Film/TheDarkKnightSaga the Dark Knight trilogy]]''. Rabid fans of ''Film/TheDarkKnight'' are sometimes found [[{{Troll}} trolling]] the boards for ''Film/BatmanBegins'' and ''Film/TheDarkKnightRises'' on Website/IMDb, frustrating a lot of more casual fans.
** Finally, not only do fans of any given iteration of Superman have to put up with fans of the trilogy doing what they do, but also backlash from fans of ''other'' trilogies spewing bile over ''Man of Steel'' due to its connection with Nolan.

** The rivalry came to a head with ''Film/BatmanVSupermanDawnOfJustice'' and ''Film/CaptainAmericaCivilWar''. It started when the two movies were scheduled to release on the same day until DC moved their movie one month earlier which angered fans. Then the movies came out. [=BvS=] was lambasted by critics while ''Civil War'' was a critical hit. Not helping was that ,any ''Civil War'' reviews fueled the fire by snidely referring back to [=BvS=], using the movie as a platform to get in jabs at ''Dawn of Justice''. DC fans reacted by ''accusing Marvel of paying critics off'' and leaving fake reviews on Rotten Tomatoes and IMDB. This caused Marvel fans to respond by calling [=BvS=] overly pretentious.

* Some ''Film/SpiderManTrilogy'' fans have a beef with ''Film/TheAmazingSpiderManSeries'' fans over which portrayal of Spider-Man was TruerToTheText and which one handled the characters well.
** Some fans of the former tend to criticize Andrew Garfield's portrayal and others calling him a ReplacementScrappy to Tobey Maguire's portrayal.
** Some fans of the latter tend to criticize Maguire's portrayal by feeling that he was whiny and had a lack of personality in addition to comparing his acting to a brick wall.

* This applies to some people who liked their favourite holiday with passion but hate another holiday with a vengeance and there are several of them: Christmas vs. Halloween, Valentine's Day vs. St. Patrick's Day, Easter vs. April Fool's Day, etc.

** Like in the MCU, there is a intra-franchise rivalry in the DCEU regarding the tone and direction of the franchise. When ''Film/WonderWoman'' was released in 2017, it became the most critically and financially[[note]]Although its worldwide gross is less than that of ''Batman v Superman'', its higher domestic gross and lower budget means that it generated a ''much'' higher profit margin.[[/note]] successful DCEU movie up to that time, while also garnering praise from the likes of Creator/FrankMiller, Creator/RichardDonner, and Creator/ChristopherNolan. Likewise, ''Film/{{Aquaman}}'' was released the following year and received a better critical reception compared to ''Film/ManOfSteel'' and ''Film/BatmanVSupermanDawnOfJustice''. However, some fans of Creator/{{Zack Snyder}} (director of ''Man of Steel'' and ''Batman v. Superman'') have accused ''Wonder Woman'' and ''Aquaman'' of "selling out" by abandoning the DarkerAndEdgier feel of previous DCEU films. This in turn has led to some ''Wonder Woman'' and ''Aquaman'' fans firing back at these detractors for either refusing or failing to acknowledge that a dark tone doesn't automatically result in a good film and that directors Creator/PattyJenkins and Creator/JamesWan deliberately choose to make their movies more light-hearted by their own volition. Furthermore, Superman fans were riled when ''Film/Shazam2019'' director David Sandberg joked how Shazam could kick the DCEU!Superman's ass and mocked the [[NeverLiveItDown infamous]] "Save Martha!" scene from ''Film/BatmanVSupermanDawnOfJustice''. Granted, Sandberg was joking but some DCEU fans [[PoesLaw took his comments at face value]].[[note]]Given how the character was created as a Superman knockoff by Fawcett comics, there are bound to be flame wars about who is the better hero regardless of the creative minds involved in these movies.[[/note]]

** Like in the MCU, there is a intra-franchise rivalry in the DCEU regarding the tone and direction of the franchise. When ''Film/WonderWoman'' was released in 2017, it became the most critically and financially[[note]]Although its worldwide gross is less than that of ''Batman v Superman'', its higher domestic gross and lower budget means that it generated a ''much'' higher profit margin.[[/note]] successful DCEU movie up to that time, while also garnering praise from the likes of Creator/FrankMiller, Creator/RichardDonner, and Creator/ChristopherNolan. Likewise, ''Film/{{Aquaman}}'' was released the following year and received a better critical reception compared to ''Film/ManOfSteel'' and ''Film/BatmanVSupermanDawnOfJustice''. However, some fans of Creator/{{Zack Snyder}} (director of ''Man of Steel'' and ''Batman v. Superman'') have accused ''Wonder Woman'' and ''Aquaman'' of "selling out" by adopting a more optimistic tone and abandoning the unique DarkerAndEdgier feel of previous DCEU films. This in turn has led to some ''Wonder Woman'' and ''Aquaman'' fans firing back at these detractors for either refusing or failing to acknowledge that a dark tone doesn't automatically result in a good film and that directors Creator/PattyJenkins and Creator/JamesWan deliberately choose to make their movies more light-hearted by their own volition. Furthermore, Superman fans were riled when ''Film/Shazam2019'' director David Sandberg joked how Shazam could kick the DCEU!Superman's ass and mocked the [[NeverLiveItDown infamous]] "Save Martha!" scene from ''Film/BatmanVSupermanDawnOfJustice''. Granted, Sandberg was joking but some DCEU fans [[PoesLaw took his comments at face value]].[[note]]Given how the character was created as a Superman knockoff by Fawcett comics, there are bound to be flame wars about who is the better hero regardless of the creative minds involved in these movies.[[/note]]

** Like in the MCU, there is a intra-franchise rivalry in the DCEU regarding the tone and direction of the franchise. When ''Film/WonderWoman'' was released in 2017, it became the most critically and financially[[note]]Although its worldwide gross is less than that of ''Batman v Superman'', its higher domestic gross and lower budget means that it generated a ''much'' higher profit margin.[[/note]] successful DCEU movie up to that time, while also garnering praise from figures like Creator/FrankMiller, Creator/RichardDonner, and Creator/ChristopherNolan. Likewise, ''Film/{{Aquaman}}'' was released the following year and received a better critical reception compared to ''Film/ManOfSteel'' and ''Film/BatmanVSupermanDawnOfJustice''. However, some fans of Creator/{{Zack Snyder}} (director of ''Man of Steel'' and ''Batman v. Superman'') have accused ''Wonder Woman'' and ''Aquaman'' of "selling out" by adopting a more optimistic tone and abandoning the unique DarkerAndEdgier feel of previous DCEU films. This in turn has led to some ''Wonder Woman'' and ''Aquaman'' fans firing back at these detractors for either refusing or failing to acknowledge that a dark tone doesn't automatically result in a good film and that directors Creator/PattyJenkins and Creator/JamesWan deliberately choose to make their movies more light-hearted by their own volition. Furthermore, Superman fans were riled when ''Film/Shazam2019'' director David Sandberg joked how Shazam could kick the DCEU!Superman's ass and mocked the [[NeverLiveItDown infamous]] "Save Martha!" scene from ''Film/BatmanVSupermanDawnOfJustice''. Granted, Sandberg was joking but some DCEU fans [[PoesLaw took his comments at face value]].[[note]]Given how the character was created as a Superman knockoff by Fawcett comics, there are bound to be flame wars about who is the better hero regardless of the creative minds involved in these movies.[[/note]]

* Ring Of Honor also had one with Wrestling/ProWrestlingGuerilla, which was kicked off by accident when a WorkedShoot worked [[GoneHorriblyRight too well]], Wrestling/DragonGate (specifically DGUSA, when ROH head booker Gabe Sapolsky moved there after being fired) and Wrestling/{{CZW}}, the later of which was {{exploited|trope}} to produce what is considered to be the [[UltimateShowdownOfUltimateDestiny greatest feud]] in ROH history. ROH for its part had been selling PWG merchandise since the Feinstein incident and [[Invoked|Trope promoted harmony]] between [[FriendlyFandoms the fan bases]] when Wrestling/MartyScurll entered ''[[TournamentArc The Battle For Los Angeles]]''.

** Or as the Wrestling/{{Cody|Rhodes}}\[[Wrestling/TheYoungBucks Young Bucks]] driven ''All In'' and Wrestling/ChrisJericho's Cruise prove its NJPW, ROH, Impact, Lucha Underground/AAA, WOS & MLW ''[[RivalsTeamUp vs.]]'' WWE. While that list might look long, it could easily be spun into a continuation of the old NWA vs WWF rivalry, even ignoring that the NWA World Heavyweight Title was the belt defended during the main event of ''All In''. What's changed is that most of the shows opposing fan bases swear by [[VestigialEmpire are no longer united by the NWA brand]], so [[WeAreStugglingTogether the diversity]] of WWE's opposition becomes more readily apparent.