They can't be #1 because of how laughable they've been on the field. Actually, the teams are a completely different story than the fans.
Hate Ratings - FANS:
1. skins
They're frighteningly stupid. They worship the weegros of the DTC. They're just awful.
2. cowboys
Too many of them. Most of them still think the quarterback is Troy Aikman. The ones that actually follow the team are usually even worse.
3. giants
They're the most like Eagles fans IMO. Most of the Giants fans I know (and I know plenty) understand the game of football and are as critical of their team as anyone.
Hate Ratings - TEAMS
1. cowboys
Any team in the division with TO has to rate highly here. Also, they are probably the best competition for the Eagles right now, and all the Tony Romo shtein is nauseating also.
2. (tie) giants/skins
The skins players are laughable for the most part, but combined with the severe mental retardation of Clinton Portis and the thuggery of Sean Taylor, they have a nice cross-section of guys to hate.
The giants have the pampered under-criticized QB, a receiver that hates his coach and never practices but still burns our corners, a TE that's a complete clown and wildly overrated, and a homosexual gap-toothed aging DE that got a gift-wrapped NFL record. Hate.
So, I hate the giants fans' ess than the other two. But I hate all the players a lot. LOT. HATE.