I'll say baseball also. It's always been my favorite sport and I like the day-to-day results coming in for the players on my team. Every start for one of my pitchers is something to look forward to (or dread) and I can watch more of my guys play (MLB Extra Innings Package).
I love fantasy football also, it makes Sundays so much more interesting. Before playing fantasy football, I hadn't watched much football for a few years. Now I'm hooked on NFL Live, Hector & Victor, etc. I also like the head-to-head action in football. You can have a great week and still lose or squeak by with a win on a crappy week. I've always played roto in baseball, never head-to-head.
Roger Angell: I was talking with Bob Gibson and I said: 'Are you always this competitive?' He said: 'Oh, I think so. I got a three-year old daughter, and I've played about 500 games of tic-tac-toe with her and she hasn't beat me yet.'