I agree - while I adore Wash, there is Xander to consider. And of course Keith makes a good husband!

Oh, this one's really easy. Cliff Piz, because he irritated the hell out of me by being Diet Logan. Shag Weevil, because I'd have to make sure he's not all talk and no walk - he does say he'd "love me long time". :P And marry Wallace, because he's sweet and deserves some happiness.