The mutual friend I met my wife through went to UVA, and her favorite football teams were the teams with former UVA players. The player switched teams, she switched allegiances. I don't know if that just shows her ferocious devotion to the college game, or a lack of dedication in the pro game.
My list:
1. Redskins
2-4. Chargers, Panthers, Steelers - this list kinda goes back and forth depending on the situation. I root for the Steelers when the situation warrants because of my wife, the Panthers due to geographic proximity, and the Chargers because at various times in history they were kinda like "Washington Redskins, West." Lots of former Washington personnel found themselves in San Diego.
5-29. Everyone else. The Patriots trend towards the bottom of the list, as do the Giants, Eagles, and Bills. Small-market teams (Kansas City, Green Bay) trend higher.
30-32. Colts, Seahawks, Cowboys. Again, the situation dictates the actual order. Seattle is a new addition, based on recent events.