Okay so this is gonna be silly, but... my favorite sport is badminton. I love badminton. There's something about it that just makes it so involved to me, I guess it's that due to the birdie being slower than a tennis ball it gives me more room to pull crazy 'stunts' and just have fun with it. I also really like tennis but I'm more fond of table tennis and air hockey, which the latter isn't really a sport but I honestly treat it like one. I will watch strangers play air hockey at an arcade forever and get super into it.
Other than that, equestrian sports are the one other sport I really love to both participate in and watch. I guess I should've started with this one, but badminton came to mind first.
What's something that never fails to make you laugh?