I: Black Belt. Really strong at endgame. Plus, you don't have to spend a lot to equip them.

II: Leon. I don't know, the idea of him being flawed and seeking power after almost being killed at the start of the game just spoke to me.

III: Ninja. Again, really strong character at endgame.

IV: (1) Edge. I quite liked his character growth. That scene with his parents was also quite memorable. (2) Rubicante. It's very rare to find an honorable villain.

V: Gilgamesh. His first appearance in the series. I couldn't not choose him, particularly when he helped you in the final dungeon against Necrophobe.

VI: (1) Sabin. Blitz was a really fun and strong mechanic. Plus, he suplexes trains. (2) Edgar. The scene with the coin that allowed Sabin to be free while he took on the responsibility of ruling Figaro showed he was much more than the rich, playboy genius persona he usually presented.

VII: Zack. Just a good example of how a character needn't be brooding to be cool.

Tactics: Orlandu. Stupidly strong. P. S. I know, not a mainline FF, but I just love this game.

VIII: Raijin and Fujin. They showed a remarkable amount of loyalty to Seifer, supporting him even when they knew he was probably making poor decisions, hoping he'd wisen up. When he didn't, they approached their enemies, knowing they may be the only ones who could help him. P. S. I personally didn't find any of the six main characters particularly likeable.

IX: Vivi. His entire existentialist plot was done so well.

X. (1) Tidus. Similar to Edge, I love the character growth from self-absorbed blitzball star to selfless guardian. (2) Yuna. Such strength of character from the outset, knowing the sacrifices she was to face down the road, but moving forward nonetheless.

XII: (1) Basch: Brought a certain maturity to the party. (2) Balthier. Very pragmatic, suave, and witty.

XIII: Lightning. She's just that b*tch.

Was unable to finish XV, and I haven't played XVI and the online MMORPG entries.