Hair on the body: no thanks...I don't think I've ever met any girls who are repulsed by a guy not having body hair. So even if a girl does like body hair, she's not going to not date you because you don't have any. Your best bet is just to not have body hair.
Hair on the face: a little scruff works on most guys, but not all. Full-on beards are never attractive and no kind of mustache is attractive.