I enjoy baseball. Watching it live is oh so much fun. I'm lucky to have a wonderful minor league stadium and team within walking distance to my house (so it's a little long for a walk... but we do it).
I've been to a few mlb games, toured Fenway Park, sat on the green monster.... but I have to say, being able to attend spring training games is the way to go.
Tucsons Electric Park was super nice and uber small!! That means no matter where you sit, you've got an awesome view of the the action. Combine that with winter Arizona weather and it's pretty much a win-win, no matter who wins.