The 1992 Dallas Cowboys- I believe -were the greatest football team to ever take the field. What made them special was this was a team that did not know exactly how good it was.
After some opening game jitters in the NFC title game, this team dominated the heavily favored Niners from pretty much start to finish. After a bad coaching decision by JJ to go for a 4th down conversion deep in Niner territory leading by 11 failed, they held off a rally to win the NFC title by 10 pts on the road to another great, great football team.
The Bills never stood a chance in the Super Bowl. Its performance in the Super Bowl was a snapshot of what made the '92 Cowboys great- a mix of an intense fear of failure, hunger for success, mental toughness and talent, and supreme execution when it shook the nervousness of youth. For my money, no team in football history following that win in SF could have beaten the Cowboys in a championship game on a neutral field. None.