For the reticent warrior, Auron sure talks a lot in battle. But he's so cool, it's forgiveable. And the other random dialogue is just great:

Tidus: Pace yourself, Auron!
Auron: Worry about yourself.

My FFX game is stalled, like most of my other games, at the ending subquests -- cactaurs, lightning plains, and whatnot. I have yet to beat FFVII because of Materia mastering. I mean EVER.

Tidus is a big change, but Rikku is the biggest one, I think. She just loses cute factors like mad, and I'm not sure why. Of course, those pupils are just creepy anyway. The other characters don't change so much. Auron doesn't change at all! When it comes down to it, Auron just can't be beat...

"Now! This is it! Now is the time to choose! Die and be free of pain or live and fight your sorrow! Now is the time to shape your stories! Your fate is in your hands!