Chicago Bears, as of start of 2011 season, 704 Regular Season wins, 721 including Playoffs. Green Bay Packers are second with 664 Regular Season wins, 693 including Playoffs. NY Giants are third with 636 Regular Season wins, 656 including Playoffs. Pittsburg Steelers are fourth with 546 Regular Season wins, 579 including Playoffs.
source: NFL
The Chicago Bears have the most regular season wins (686) and the most total wins (702) of any NFL team.
Stellers
The Pittsburgh Steelers
The Kansas City Chiefs had the most wins in the 1990s
Chicago Bears
Oakland Raiders
Don Shula
Cinncinnati bengals
Washington
Pittsburgh Steelers
Raiders
Chicago Bears