My daughter bought a pack of stickers and gave me the Eagles sticker. After tearing it into a million pieces, I gently explained to her as much as I love the NFL, I am predisposed to dislike every other team on a spectrum.
Tier 1 - Hatred: These teams, their fans, their families, their pets, their churches, anything associated with them are despised, their mere mention raising my already elevated blood pressure. When completing a task that requires extraordinary effort, I think of these teams, channel the anger, and push through. Watching these teams lose (barring some strange scenario requiring a win) brings joy comparable to a Bills victory.
Cowboys (I decided in the early 90s that the Cowboys were to be hated for the rest of eternity. Still unsure if I hate the Cowboys more than I love the Bills)
Dolphins (there will forever be a special place in my cold, black heart for these clowns. The current iteration with Hill and McDaniel makes the hate even more delicious)
Patriots (they could lose the rest of their games from now until the end of the NFL and it would still never be enough)
Jets (with any other team other than this one and the Browns, sympathy might lessen the hate a little bit. But their owner and fans make it so easy to continue as is)
Chiefs (hatred shared with most of NFL fandom, apparently)
Ravens (Just a dirty team... having been punched in the face by these guys, always a little triggered when we face them)
Bengals (Forever riding their recent Super Bowl appearance, punch in the face kind of cocky, lead by their smarmy QB. The goodwill from backdooring us to the playoffs is long gone)