I really thought the Giants would be number one for me by a mile. I think my problem is that, while I hated those games with the fury of a thousand suns (almost destroying my love of football entirely,) as I was typing this I realized I don't really hate the franchise itself. At least, not in the same way I hate:
1. The Ravens (disgusting franchise and blight on the NFL)
2. The Jets (ick... just, ick.)
3. Eric Mangini (I don't care that he's not a team. I hate him.)
Nothing comes close to those for me. I actually do hate those franchises. Like actually hate them.
Honorable Mention: Peyton Manning Teams, Bernard Pollard Teams, Steelers, Colts, Dolphins, Bills, Giants, maybe these Harbaugh 49ers, the Caroll Seahawks, Lord Favre Teams, Marshall Faulk Teams