Not seen any of them. Surprisingily. The only American Football movie I've seen is Any Given Sunday. Don't remember much about it, except from Cameron Diaz walking around the lockerroom with dudes everywhere. Oh and the scene where some dudes are having a coke orgy.
Unlike that movie all the Football movies I listed are all based on true stories. Great movies. Rudy is a classic movie about hard work and dedication. Funny enough it's where Vince Vaughn and John Favreau met. Remember the Titans is a true story about a high school football team integrating white and black players. The coach is Denzel, Oppie from SOA is a youngster in the movie. It's fantastic. Then you have Friday Night Lights where Billy Bob Thorton is the coach. That's just a raw look about just how serious football is taken in some areas here in the US and the extreme pressure put on the kids/players. It's also fantastic. There is a TV series with the same title that is also great.
Varsity Blues is an old comedy but it's also fantastic. I think it was Paul Walker's debut? Also the whip creme bikini...