Of team sports, I only follow the NFL, the NBA, and the World Cup. I support the US in the world cup of course.
NFL: Washington Redskins
NBA: Cleveland Cavs(the team I'm most into period)
NCAA Basketball: I like the U of Maryland, but I'm not as into college basketball as the pros for a number of reasons.
Cavs for the title next year!
I guess it's a little odd that I like teams from different cities, but they mainly reflect where I was living when I started being interested in that sport. The rest of my family likes the philly teams because my parents came from there, but I go with my hometown(s).