Originally, I tried to make Firion a white mage/paladin, Maria a black mage, and Guy a fighter, but I ended up making them all more like Red Mages.

Firion:
Weapon: Sword
Primary Magic: Fire, Holy, Esuna, Cure

Maria:
Weapon: Bow
Primary Magic: Blizzard, Ultima, Cure

Guy:
Weapon: Two Axes
Primary Magic: Thunder, Flare, Cure

Leon:
Weapon: Javalin (I know a sword would be better, but for some reason I want all my guys to have different weapons)
Primary Magic: None (so far)