I don't really hate any of them. In fact, the ones that seem to be posted the most are my favorites.
FFVII spoiler:
(SPOILER) i didn't like aeris, but only because she died and I didn't want to use her when i could be developing other people's limits, but i didn't hate her character so much

You can tell Seymour is a mamma's boy. Yes, I know his mother is dead, but he just seems like the type, don't you think?
And Sephiroth really was a mamma's boy. but they both made for a nice boss fight.

and i thought this needed some emphasis:

Tidus and Cait Sith are two of my favorite characters.