I used most dresspheres but these were my top three:

1. Warrior. All the abilities were cool and reminded me of both Auron and Tidus, and I used them the most in X.

2. Dark Knight. Just kick-ass. The way how it looks, it's abilities, (I love Black Sky), just awesome.

3. Berserker/White Mage. Berserker has insane abilities and is really strong. I thought it always had some sort of advantage over the other DS.

I thought Gun Mage and Alchemist were cool, since they were like Kimahri's and Rikku's overdrives in X but cooler.

(Yeah I really liked the way how my party turned out in X, okay? )

I'd never ever use Songstress, (it just sucks.), and I didn't use Lady Luck too much. Thief was pretty low on my list, only because the attacks were not too strong.