Which fan base deserves for their team to go 19-0 the most? Take into account the city itself, past team success and ownership to make your decision. For example, despite their lack of past success, I wouldn't say Bengal fans, because of their cheap owner. Or I would likely say the Saints, due to Hurricane Katrina+Gulf oil spill, but they did just win won 2 seasons ago. My guess would be Bills. A lot of heatbreak in the 90s, a very loyal fan base and an owner who isn't cheap, but just makes bad decision after bad decision.