Midgar Mist asks this for funsies. (And it can be any character, not just the playable ones.)

I say

Snog: Zack Fair (he's good looking but.....its a dangerous profession)
Marry: Tidus (dream schmeam I want my Tidus)
Avoid: Zidane (cos he'd seduce me then steal my stuff)

How about the rest of you?