A professor at Emory University took a look at NFL teams and crunched some numbers and ranked the fanbases of the teams from first to worst. Here are his conclusions:
BEST:
1. Cowboys
2. Patriots
3. Eagles
4. Giants
5. Steelers
WORST
28. Bengals
29. Jaguars
30. Titans
31. Rams
32. Chiefs
See how he came up with this list here: CBS Sports.