the Pittsburgh steelers
Through the 2010 season, it's the Chicago Bears. They have a record of 704-512-42 for a winning percentage of .579.
a winning season is when a team has more wins than losses. For example a team with a 9-7 (or better) record has had a winning season.
49ers
Among existing teams, the Cowboys have the best winning percentage. As of the beginning of the 2010 season, Dallas is 467-339-6 all-time, for a .579 winning percentage.
Titans.
The 5-4-1 team has the better record. When figuring winning percentage, a tie is considered a half win and half loss. So, where the winning percentage of a team 5-5 is .500, the winning percentage of a team 5-4-1 is .550.
the New England Patriots had the best record in 2010 (14-2)
Pittsburgh Steelers
denver broncos... XD
The team with the best regular season record in 2004 was the Pittsburgh Steelers at 15-1.
your mom jk its the stellers they suck balls Its Steelers and they have 6 superbowl titles and a winning record...