Zidane. I don't really like the "modern" FF heros. Cloud, Squall and Tidus all had the same "relucant hero" attitude about them. Cloud was a self-serving, loner asshole for the first chunk of the game. Squall was a cold, emotionless asshole for 98% of FF8. Tidus whined, complained and voiced his distaste for being the hero the whole fucking game.

Zidane was badass because he was nothing like any of the more recent heros in FF history. He was a smartass, a ladies man, an actor, a thief and underneath it all a genuinely caring and heroic character willing to do whatever it took to save the world. The other three all had to have their arms practically twisted in half to get them to do their damn job.

Aside from Zidane, I would agree with Chruser about Edgar. He was my favorite of the three "heros" from FF6. It was cool to see a king jumping into the action and kicking some ass.