The Crimson Magician all the way, baby.

They should release a title called Final Fantasy Mages. No Warriors, Thieves, Monks, Beastmasters, Gunners, Alchemists, Samurai, Berserkers, Mimes/Mascots/Dancers/Bards, etc.
Just magic users: all the mages/sages (Red, White, Blue, Black, Green, Time), as well as any other potential magic user (Summoners, Geomancers, Gun-Mages, maybe even Psychics, Paladins, Dark Knights, and Ninja)