There were a number of characters that I liked but I think that Edge was the best in terms of personality. Maybe not use in the game but definately in personality. He had that rogue-ish I can do whatever I want because I was a prince and I'm also a ninja attitude.
Second to Edge would be Cid for similar reasons...plus the whole being a crazy bearded engineer who [spoiler] Flies the airship into the cave walls to save everyone[/spoiler] really makes him likeable.

That is a really difficult choice for me.

Throws gravel at your face for believing such folly

Look at the Sig and/or Avatar. It/They will tell you all you need to know.

I am a man of reason, so here is a little chunk of me:

1. He looks frickin' Ontzagwekkend!* (excuse my Dutch)
2. He is mind-controlled, but then breaks the link
3. He fights with a lance, which aren't as easily handled as other weapons, such as a sword, or a thrown onion.
4. He is a Dragoon, for peet's (Pete's?) sake! They make a habit of Slaying Dragons and donning their carcasses as body armor and ornamentation. I would also like to add at this point that Dragons, unless at a sufficiently lower level than yourself, are frickin'g tough (yes I like that word), by which I mean that they are incredibly hard to kill.
5. He looks frickin' Terrível!**

I will concede that Setzer looks far more "Badass" than Kain does (can I say that?), but I can't very well put him here now can I? (That is a NO)


*It means Awsome, for those of you non-Dutch Majors out there
**Again, Awsome, brought to you by the Portuguese