I was trying not to include Beatrix because you get to play as her for a while, but if we're counting her, then she definitely wins.

I quite liked Cid, who obviously couldn't keep his trousers on (or stop himself trying to get his trousers down), Fratley, and Bobby Corwen, who is heartmeltingly sweet. I rather liked a lot of the Black Mages in Black Mage village too on that note.