I'm terrible at any sport, but tennis is fun. Never could get into any of the rest, but tennis was always fun during high school. Badminton too. Pansy sports - not even sure that badminton counts as a sport - but man, they're both super-fun.
Badminton is a blast...In high school gym class, we had to pick between badminton and ping pong. (At the time) I was horrible at ping pong, so I chose to do badminton. I destroyed everyone, including the teacher whom demanded me to play him because he thought it was a fluke that I was winning so badly.
Maybe that's why I think it's so fun.