[gusmahler]

What most people hate are, as said before, the bandwagon jumpers. The guys who were 49ers fans in the 80s, then switched to the Cowboys in the 90s, and switched to the Pats in the 2000s. Rooting for a team because they make good decisions is just code words for rooting for the good teams. Because the Pats, by defition, will no longer be making good decisions if they have a couple of 5 win seasons in a row, making it safe to leave them.

Personally, I'd always liked particular styles of football, so never had a favorite team growing up, switching between, e.g., the 80s Chargers and the 90s Bills. But when I moved to Arizona, I decided to stick to a team, the Cardinals. After I moved away from Arizona, I started studying other teams, but realized that I still liked the Cards and could't root for another team.