Accidental Aesop: Sure, the show tries to paint Mia's decision to wait to sleep with Manuel as being "good", but once we see how Manuel acts, the series seems to subconsciously suggest that Mia did wrong for not pleasing him sooner.
The "abortion is bad and only loose women do it" implied message in the Teen Pregnancy arc.
Alas, Poor Scrappy: While most people did not like Paula for interfering between Pablo and Marizza, the way Sergio disposes of her is just too cruel for a mostly innocent woman who simply did what she had been told.
In a way, Blas. People cared very little for him, due to mistreating Luján the whole two seasons, abusing his authority over the students, seducing Mia and essentially damaging Mia and Manuel's relationship with the fake kidnapping, which lead to Manuel cheating on Mia, but darn if many didn't feel shocked when he died.
Ass Pull: Manuel suddenly remembering everything at the finale and Mia returning with him, despite all the shit he gave her throughout the year, like assaulting and cheating on her with another woman. Many feel this pairing is unhealthy and is only in the show to keep the Status Quo of Main Boy and Main Girl Must Go Together.
Awesome Ego: Sergio Bustamante may be a bastard, but darn if he isn't good at playing the authorative figure.
Badass Decay: Manuel in season 2. In Season 1 while he was a bit abrasive with Mia and misguided with Franco, he was still a strong, dedicated boy who helped his friends in need and never let injustices pass by. Come season 2, he's only interested in getting laid and jealous/overprotective over Mia. Many fans found his sudden change very unappealing.
Marcos as well. A refreshing change on the Nerd archetype in season 1, in season 2 he turns into an insecure boy who cheats on his loyal girlfriend for the shallowest of reasons.
Big-Lipped Alligator Moment: The dream/fantasy sequences. While cute, they don't really add anything to the plot, aside from showing us the kids can dance.
Cuatro Caminos: A fitting ending for such a beloved series, or a cheap, lazily done movie that represents an underwhelming finale to what was otherwise thought to be a revolutionary series? Even people who like the film admit they enjoy it more when they see it as a parallel story instead of the finale of Rebelde Way (and it seems that way, since once you notice it, it has little in common with the series, aside from the main leads having the same names, and being played by the same actors).
Which season is better: season 1 or season 2? There's both pros and cons to both seasons:
Season 1 had the most consistent writing and characterization, but the world-building was not yet set and some of the more "fantastical" elements stuck out like a sore thumb and would've belonged in something more akin to Chiquititas or Floricienta.
Season 2 had the world-building properly established; darker, age-appropriate storylines handled with care, very good Character Development given to Pablo, and a constant tone set to the series (not to mention the music also got better), but the season was also littered with filler subplots, characters being Put on a Bus in extreme and nobody remembering them, Flanderization for beloved characters of season 1, and pulling AssPulls out of locked storylines to easily achieve happy endings (Manuel suddenly regaining his memory so he could be together again with Mia).
Catharsis Factor: For some, Franco punching Manuel after he cheated on Mia with Sabrina.
Ensemble Dark Horse: Rocco was so popular with fans that it basically launched Piru Saez's career. Cris Morena noticed the popularity of the character and asked Piru to play the main lead, very similar to Rocco in personality, in one of the next series she made, El Refugio, also reuniting other RW veterans.
Esoteric Happy Ending: All the main couples get together, even Mia and Manuel...But Manuel disrespected and harassed her so much during the series, it's difficult to think they'll have a happy relationship after the series. Who's to say he won't cheat on her again, like he did with Sabrina?
There's also the issue with Pablo and Marizza, the relationship that the show had developed the most during all of the series, and had come to be many people's favorite couple...But then Marizza caught the Idiot Ball in the last episodes and began mistrusting and judging Pablo for Sergio's actions, not believing that her boyfriend had changed (even though she previously did). In the penultimate episode Pablo became disillusioned by her attitude and told her that it was over between them, but they quickly got together again in the next/last episode. Many felt ripped off by the drama and cheap reconciliation/cop-out ending and would've preferred something longer and more looked at in depth or maybe not do this mistrust storyline at all.
For others, Felicitas' Teen Pregnancy storyline. The show romanticizes teen pregnancy and tries to paint it as an expression of True Love and freedom, but thinking objectively, Felicitas' future seems very bleak: her wealthy family basically abandoned her once she told them the truth, she's barely sixteen, hasn't finished her studies (and probably won't, considering small children take time and attention, and her boyfriend asked her to not work once the baby came), has shown in the past to be needy and emotionally dependent, and her boyfriend is much older than her while she's still a minor, relatively poor and already the only breadwinner of a family of six. To say it will be hard for her is an understatement.
Evil Is Cool: The Logia is cheesy and over-the-top, but they brought a sense of excitement and uniqueness to an otherwise slice-of-life teen drama.
Sergio is this. He may be an abusive douche, but he's also very intelligent, savvy, and always one step ahead of Pablo in his schemes. Not to mention that Evil Laugh of his.
Fair for Its Day: While the series still stands strong to this day by showing varied, strong female characters (none of them ending up being a Spicy Latina, which would seem shocking to a non-latino audience) and displaying issues of domestic violence, abusive parents, drugs, classism and antisemitism; some of the derogatory comments towards Vico's sex life or homosexuality is a little hard to stomach nowadays, but the show still at the end tried to show Vico as a likable character, Mancilla often called out on the boys with their homophobic remarks, and there was even an anti-homophobia subplot mid-season 2, which helped develop Rocco's character rather than being a simple PSA.
One True Pairing: Search on any Youtube video about Rebelde Way or Erreway, chances are you'll find a lot of Pablo/Marizza supporters in the comments section (and there's quite a lot of Pablizza videos floating around, too). Even to this day on places like tumblr the pairing is still fondly remembered and appreciated. It has to do with the fact that the actors shared good chemistry on screen, their personalities complemented each other, and they were the couple which grew and developed the most thanks to the others' influence.
The Scrappy: Nobody likes neither Sol nor Javier. The first one for being a cliched Mean Girl, a bad foil to Mia and totally self-absorbed. The latter is hated for acting like a wimp in front of people (disguising his true, manipulative nature) and for interfering in between the ship of Marizza and Pablo.
