Anything Marvel v DC related. Currently talking about their movies is more controversial than the comics.
True. And I don't really understand why. Both companies are entertaining the s**t out of me and I can't wait for the next release whether it be a show or a movie.
Race or gender changes to comic characters.
Also true. This, I think is personal feel. For me at least. I hate that DC made Wally black but don't mind Perry White being black.