Whenever I'm asked to interview someone who's going to join our sales team I always ask this question.
The right answer (according to me) is "hate to lose" because I know this person is going to do everything they can to make sure that doesn't happen. It's the more maniacal and irrational choice to some, but I think it's what sales reps need to succeed.
Do you agree with my "correct answer?" If not, why is "loving to win" better?