Quizbowl (or Scholastic Bowl at my school, same thing) is actually kind of fun. I did it my freshman year, and you meet that perfect balance of smart people, but not too nerdy. Some of the questions were rather ridiculous, but I had a good time. I would go back if the same people were on the team, but they all got up and left too, so I don't know the people on the team all that well.