Bizzaro World and The Arsonist, moreso the latter due to the djent sound as well as Gahlert being seen as an overall weaker vocalist.
Hybris. Gahlert got a lot better, but your opinion on the album probably depends on if you liked the 8-stringed djent sound of the last album or not, and if you think Margi is a worthy successor to Sabine.
The rapped verses on "Deathrace". The rappers are pretty good, but so out of place that it's hard not to find the abrupt transition funny.
Prem's scenes in the "Code of Honor" video. He's just casually walking around an industrial estate and a suburban area while lipsyncing vicious death growls with an entirely blank expression.