favorite to watch? - Football. The American kind. The one that doesn't go by any other name. favorite to play? - Softball.
Propa Football that the English invented, Snooker and when i'm down the pub then a game of darts is pretty good.
Cricket all the way for me. There was a time during the Becker-Edberg days that Tennis also came close, not any more!
American College Football, even though I'm from Australia. ( it's my favorite to watch) Still participate in some Tennis and Swimming.