the only team that I consider "mine" (meaning I say "we" when speaking about them) are the Raiders.
I root for the A's & Warriors also, and I was a big fan of the Lakers when I lived in LA, but I never liked Shaq, so once he went there I kinda lost interest....that also made me not really into Kobe, although I think he's a great player.
I also cheer for Cal, although I don't follow college sports but I will cheer for them when they're playing.
I also like the Bengals & Steelers and alot of individual players in football & basketball like Chad Johnson, Peyton Manning, Lebron James, Ben Wallace, & Joakim Noah (only cuz he looks like he could be my cousin, lol)
I don't follow hockey at all nor do I watch games on TV, but go Sharks since they close...lol