Right now, in world two in Val/Bal Castle, Bartz is in the Knight jobclass. He's mastered Mystic Knight, Caller, Chemist, and Dancer

Lenna is a Dragoon, with Ninja mastered, Archer, White Mage, Blue Mage, Chemist, and Elementalist

Galuf is a White Mage, with Monk, berserker, archer, time mage, and blue mage mastered.

Faris is also a Knight, with Thief, Black Mage, Red Mage, and Dancer mastered.

I usually pick the ones they look good in