There are totally teams that you learn to hate because of Location and there are totally teams that you learn to enjoy watching because of either people you meet and location.
I used to only care about the Bills, Yankees, and Syracuse Basketball. I moved to Cincinnati to attend Xavier University (Elite 8 Punks!!!!!) and I have found myself absolutely hating "The" Ohio State University. They can Schit on Themselves.
I do cheer for the Bengals now, and the Reds a little bit.
I kinda always find myself likeing teams that the girl I date likes, so the Redskins and really any team from DC (at the moment).
I find that I hate every team that my Roommate likes, so Kansas, Detroit Tigers, KC Chiefs.
Its funny how those things affect the teams you like and dislike.