From my years of personal experience both in Foxboro and other NFL cities: Broncos, Steelers and Seahawks are good fan bases. Jets are the very worst by far, followed closely by Raiders and Chargers. Eagles are pretty bad but do love football and have earned their bitterness. Jets fans are moronic, antisocial adolescent types (think Mo Howard x 60,000). Chargers fans are nasty punks and Raiders fans have a solid criminal element.
In my humble opinion, the OP should've gone with Jets, Chargers or Raiders for his documentary.