1. Yankees: Ancient Rivals, plus most of my family are Yankee fans on my dad's side, so i hear about it all the time. The Holier Than Thou attitude is repulsive.
2. Notre Dame. The Ultimate homers, incapable of reasonable thought concerning their team. Too apallingly loud and vocal in support of their team when they win, and still overbearingly loud and vocal talking about next year when they lose.
3. New England Patriots. After years of misery, empty seats in Foxboro, and a plethora of Giants and Jets stickers all over New England, the frontrunners have hopped on the wagon, in an obnoxious way.
4. All Florida teams, college and professional. Just don't like them, that's all. Also, the same is true with California.
5. Carolina Hurricanes. Not as much the team itself, but the owner. Peter Karmanos took away my boyhood team to move to Carolina, where his attendence is far worse than it was in Hartford, even in the last year, when the Whalers were a lame duck franchise.
6. Boston Bruins /NJ Devils. In the B's case, old feelings die hard. In the Devil's case, Rivals are rivals. I'm going to go check out the new arena in November, in Newark, the a**hole of New Jersey (Sorry, Camden, Newark is worse).