I love it. It's not even a winning thing; I'm a good sport even though I'm no fan of losing, ever. But I want and often need to compete in some way shape or form.
I love the rush of it all. The drive to push yourself specifically against someone or something else and having a direct read of your abilities makes competition so exhilirating for me. I've even been known to compete when other people don't know its a competition.
Now don't get me wrong, I'm a team player and have no problem staying out of the spotlight. Self-satisfaction is a much more important reward for me than external recognition [although any ONU PRSSA Exec will tell you that I like being right;)]. Friendly competition just makes things more interesting, even mundane things. When asked if I thought my internship could improve in anyway, the only thing I could come up with was that it would have been fun to have a little intern v. intern competition. Even a Scrabble (LOVE!) tourney would have sufficed.
Now like Keith said in the PRBC post, this is not the only thing that motivates me. But unlike Keith, not too many more things come to mind after about three others. Lucky for me, they happen to be fairly large things lol.
I think competition is a good motivator when harnessed appropriately and kept in perspective.
And yes, if asked, I will race you.