I -Black Mage
II/III - Can't say I was invested in any of the main characters
IV - Cecil
V - Bartz
VI - Kefka (There are ways to play him) Celes, Terra, Leo, Sabin, Edgar and Locke!
VII - Aerith then Cid after that one thing happens
VIII - Laguna
IX - Vivi
X - Auron
XII - Lady Ashe
XIII - Don't care