I've been thinking about the main characters and having been on the forums for a few months (plus 2007 but let's not dwell on my absence) I've been struck with the anti-main character sentiments that some people hold. Here's essentially the gist of the feeling:
Lightning: Strong, but moody and annoying at times.
Vaan: Non-existent entity, with an annoying voice and annoying abdominals.
Tidus: Whiny voice and daddy issues.
Zidane: Actually, quite favourable overall. Weird tail though.
Squall: Like a moody teenager throughout much of the game.
Cloud: Like a moody, schizophrenic throughout much of the game.
That's the more modern ones anyway. Not sure about the moods towards WoL to Terra.
Seeing how their the main characters and are central to many of the plots (except Vaan, along with 98% of the cast of XII) I've not exactly been blown away with many of the main characters, perhaps Lightning for her more gradual development and she is Lightning after all.
Discuss.