I'm going to have to say Chocobo Sage. And why he and Tifa never hooked up is beyond me! I mean, you feel the chemistry between those two right?
Cool facts about the Chocobo Sage:
He's a Sage.
He likes Sage and Onion crisps.
He lives in a house in the cold part of the world.
He doesn't feel cold.
He's the least insane person I've ever met!