The Elo rating evaluates a team’s skill level at any given moment and it puts the 2007 New England Patriots and 2004 Patriots as the first and second best teams in NFL history.

The 2007 Patriots went 18-0 until losing in the Super Bowl to the New York Giants.

The 1942 Chicago Bears, 1998 Denver Broncos and 1989 San Francisco 49ers rounded out the top-5.