Well, since the special jobs classes (excluding Guts) are boring, because they're too powerful, I generally go with standard job classes and even monsters. My favorite strategy is Ramza as a Squire/Monk, 2 Dancers/Chemist, Priest/Calculator, and a Mime. Since I've pretty much got Miming down to an art, it makes to quite an amusing show watching him (usually Rad) pretty much decimate everyone on the battle field in only a few turns, as my whole strategy is designed to empower the Mime and use him at his fullest extent, it's no surprise that he is often 10+ levels higher than everyone else and usually first to 99 by about 20 lvls.