Highest Winning Percentage, Regular Season Miami Dolphins .580 Highest Winning Percentage, Overall Dallas Cowboys .577
As of the start of the 2008 season, the best franchise regular season winning percentage is .580 for the Miami Dolphins (369-267-4). The Dallas Cowboys are second at .578 (414-302-6).
The Ravens
All time the Chicago Bears hold the most wins in football history at 704 and the best winning percentage at .579.
alabama, lsu
Bob Stoops of OU football team
jacksonville jaguars are .700
Packers
No, Ohio State's winning percentage is 71.6%. It is the fifth highest of All-time. The University of Michigan holds the highest winning percentage of 74%
To the best of my knowledge, Boise State.
John Heisman
The University of Michigan.
The University of Notre Dame has the highest winning percentage during that time. They have had 875 wins, 305 losses and 42 ties.