FF characters are which job?

[Kuwagami]

Penelo : WHM
Ashe : PLD
Balthier : MCH

I kinda disagree on those (based on my tests, but in the end that is personnal preference).
For me, it's more like :
Penelo : Red Mage
Ashe : Samurai
Balthier : Lancer (Ulhan in FFxii)

Though 2 of them aren't in FFxic yet so I can get behind your choice

For FFx :
Yuna : BLM (seriouly. Her base magic is higher than Lulu's for a long time) or SMN.
Lulu : BLM. No choice here
Tidus : dunno. Monk with a sword maybe.
Auron : DRK
Wakka : bard or machinist. Support ranged.
Khimari : DRG
Rikku : Rogue without a knife