I've decided not to go into huge detail with these characters. You can't really rate them in battle because they're all the same, and I didn't play enough of the game to judge them like this.
Galuf is this old man that somehow forgot that he is this big military lunar soldier or something. He also managed to forget about his entire family. And he arrived here in a meteor? Right. Old men travel around in meteors now, I'm glad I was informed of this. But nonetheless, Galuf is -awesome- because he's always making fun of Bartz and Reina. He's not even like discrete about it, he's just like "Oh just get a room already." That is why Galuf is cool.