NFL:
Cleveland Browns of course.
Baltimore Ravens (Byproduct of the Browns).
Dallas Cowboys.
NASCAR:
Any Earnhardt.
Any Chevrolet/GM product (I'm more a ford man myself).
Jeff Freakin' Gordon... What a putz.
NHL (My favoritist bestest sport on Earth ever, and the only one I played extensively):
Washington Capitals.
Philly Flyers (though I want them to win their current Series).
NY Islanders.
Detroit to an extent.
Colorado to an extent.
Toronto.
Florida Panthers.
I'd love for Boston to go all the way this year personally... I root for the Penguins in any other situation, but since there was no way in hell we were making the playoffs and we're doing serious rebuilding/restructuring, I'm gonna wish for some good things for normally crap teams. Boston's my first fave... I almost wouldn't mind seeing Philly though, as they have gone too long without. I like Jersey too.
Out west I like the Kings a lot... That and maybe the Stars, but not much else. West is just not as competitive I think, and a weaker conference that is riding the playoff wave a few teams have created. Much more competitive in the East I feel, and that hurts all Eastern teams in the playoffs and even in their race for the playoffs.