I picked cricket, baseball, basketball, and football, but I like (and follow) a large number of sports. As everyone here ought to know, baseball has always been my favorite sport; for years my second-favorite was football, but now it's basketball. I strongly prefer college football to professional football, whereas with basketball I can acknowledge that the professional version is better while still caring much more about college. I like tennis and I wish I knew more about it. I've never really been able to get into soccer or hockey.
I enjoy a lot of other sports (my partiality to gymnastics has been well noted), but the most obscure sport I seriously follow is probably lacrosse. From an aesthetic standpoint, I prefer the women's game to the men's; it's much easier to watch, largely because there's less hitting and more passing. I am a serious fan of the Maryland Terrapins, the #1 women's lacrosse team in the country; I was one of the 1,500 in attendance last Saturday when Maryland defeated #5 Syracuse, 10-7. At this point I fully expect a second consecutive national championship.
I wish the SEC played lacrosse -- I've flipped past ACC, etc., games on TV and it seems like something I could get into.