I thought 'Vigor' was the same as 'Stamina.' Like, how much damage you could endure from physical attacks. Unless I am thinking about that the wrong way.
In final fantasy 4 vigor controls the ammount of hp your characters get when they level up. Thats why mages always have lower hp and strength. But for the other final fantasies it might be different.
I didn't get to answer any questions : (. So i'll ask one...why is it that in FFX-2 all you do are minigames almost and then at the very end you're like OH I have to fight a boss, where'd he come from? Ha I DESPISE that game.