I voted hands down for Eagles's fans. I grew up in the area and found just about every Eagles fan to be one of the following:
1. Rude, obnoxious - Would poor beer on a five year old kid who wore a Cowboys shirt.2. Disloyal - From booing McNabb, to burning tickets, to writing them off immediately this year (and most others)
3. Nonsensical - Good luck talking overall football with them. They either are completely bias to Eagles' players or every player in the league is a "bum". They have no concept of what it means to be objective.
4. Not learned - Generally, they really don't know what's going on on the field. The general fan will yell and scream despite the Eagles' coaching staff making the right decision, they don't know what the situation calls for, etc.
5. A felon.