Volleyball is the best for me. I played on a team in sixth grade and we finished second in the league, but once that year passed, there was no more team, no more anything there. I play intra-murals at school and whenever there's a pick up game going on.
I also like Basketball quite a bit, though I'm not really great at it. I played a lot more for defense and the team more than offense and personal scoring, so I didn't get a lot of playing until JV, which I started that year, and quit the following year. Haven't played competitively since.
Soccer is great, but I only played one year of that on a team. The rest was pick up games, a bit of posing as a linesman and helping my brother and sister's teams when they played later on, and of course pick up games.
Ultimate Frisbee is cool, but I don't play often, because I haven't been able to break into the hierarchy of the group that I would play with at school. I'm only involved when I end up on a team with all the "bad" players, so it's not worth it when it gets all competitive and you just run up and down the field, for me at least. But it's fun.
I think that's it. I like other sports, but those are the main ones I play/played.