21. 1971 Cowboys (Won Super Bowl VI)
Before they were known as “America’s Team”, the Cowboys were looking to make their mark with coach Tom Landry and quarterback Roger Staubach. And boy did they make it.
The year before the Dolphins capped their undefeated season, the Cowboys held Miami to a record low three points. Add the leagues best scoring offense and you’ve got a dominating Cowboys team. This was the first, and best, of Landry’s two Super Bowl winning teams.