Why do people hate Cait Sith so much, he doesn't deserve your votes (I'm more saying this to people that I expect to come to this thread not as much people that have already voted though they're definitely included?)
a) Purely battlewise Cait Sith is cheeply good, he's the best character in the game because of his all Cait Sith slots. I would never use him because otherwise he's not too good and that move is cheep but he's definitely not bad with a one hit kill all move.
b) He was a character with actual conflict, he works both for you and against you making him somewhat more interesting then many.
c) How can you dislike a mog with a cat on it's head- so awesome.
d) The sacrifice scene was interestingly done, with a nice feel to it. I really like that scene every time I play, then I forget and enjoy it again.
Aeris deserves your vote...