Steelers
Niners
Cowboys
Patriots....
I agree with this assessment except I put in the Packers either before or after the Patriots. The Steelers had the best 6 year run, winning 4 out of the 6 years, and in fact since the immaculate reception in 1972, they were contenders.
I would throw in the Green Bay Packers in when they won the first 2 Super Bowls and had one the NFL championship before the Super Bowl and the merger with the AFL.
To call the Patriots a dynasty with this win is sheer stupidity. The Patriots have not won since when? 2002, 2004 and 2005? That's 10 years ago. And now they barely won in 2015 with Brady turning 38 in 2016. I think this will be Brady's last stand and the Patriots will be a second place team in 2016 and beyond.
Football really hasn't had the dynasty teams as the NBA has had. The greatest teams being the Boston Celtics when Bill Russell, Don Nelson and John Havilchek played, Chicago Bulls with Michael Jordan and Los Angeles Lakers during Wilt Chamberlain, Jerry West and Elgin Baylor, and then Magic Johnson, and then Koby Bryant, and New York Knicks with Walt Frazier, Willis Reed, Dave Bradley, etc.