Lets do some Fan Ranking shall we?

1. Steelers- This one was a tough one, between the Steelers and the Packers. Both great fan bases, but the Steelers barely got this one.

2. Packers- Small town, big team. Loyal fans, always their at the game even when its freezing.

3. Browns- If you didnt think that the Browns are my 3rd rank, let me tell you that Cleveland is a great sports city. They have very loyal fans, even though their teams havent been so successful over the years, they have continued supporting their teams. Good job Cleveland.

4. Eagles- Sorry, probably the most selfish fans in the NFL. And sometimes the most annoying, but they are loyal and considered one of the most rabid in the nfl.

5. Patriots- Boston sports city, loyal fans. Celtics, Bruins, Redsox, how do you not like this team?

6. Cowboys- Americas Team? Whether or not you believe that, you cant disagree that they have a great fan base. They have one of the best, and most beutiful stadiums in the NFL, and that makes the game more enjoyable.

7. Raiders- Crazy fans! Very loyal, and they think that its halloween every game! Ive been to a few raiders games, I wouldnt reccommend wearing anything other then Raiders gear... xD

8. Redskins- Their ya go cheechdog. The redskins rank as the 8th on my list. Maybe not as vocal as the Eagles fans, but they are very faithful during hard times.

9 Bears- If you live in Chicago, you have to be crazy not to root for the Bears. Great history, one word, Walter Peyton.

10. Giants- Jets vs Giants a great rivalry. But the Giants have the majority of popularity in New York because of the success in the recent years. Giants fans seem to be quite loud throughout the game.

And of course, here are my honorable mentions hehe XD
Broncos- This is traditionally one of the stronger fan bases in the NFL. The magic of old Mile High may be gone, but Broncos fans brave varying degrees of football weather to cheer the Broncos season after season.

Colts- Since they moved to Lucas Oil, should you know they used to be in the RCA dome which produced much noise. So far this year, the Colts fans are doing a good job putting up without Manning, and I think they're a strong fanbase.