Ugh, guess I'll go...
NFL: Colts (grew up in norther Indiana, so my other choice would have been the Bears, so go easy on me. Also went to Tennessee and attended a couple of classes with Peyton)
NHL: Blackhawks are my team, though I'm closer to DC, so we chack out Caps games whenever we can
MLB: Just about anyone but the Yankees or Red Sox. Having the O's in the same division, it's about all we hear about
NCAA: Went to Tennessee, but don't really have any allegiance to them anymore after the Fulmer / Kiffin debacles. Love to see Michigan lose, so I guess that's something...