As of the 2013 season, the College Football team that has the best winning percentage in Division 1 is Old Dominion with a winning percentage of .767. Old Dominion has only played 60 games in Division 1 though.
Notre Dame is 2nd with a percentage of .733
Michigan is 3rd with a percentage of .732
49ers
Kentucky (.758), UNC (.738), Kansas (.713), UCLA (.697), Duke (.697), Syracuse (.685)... in that order.
Tampa bay rays
Assuming that the 2 represents ties, the winning percentage is .619 Assuming that the 7 represents ties, the winning percentage is .738
The 95-96 Chicago Bulls. They won 87 of their 100 games ( including playoffs). This team holds the NBA record for best winning percentage at .878.
North Dakota State University Bison
Michigan
University of Idaho .362 winning percentage (Kansas State has most all-time losses.)
1) Notre Dame-.74721 2) Michigan-.73981
49ers
NY Mets
New york yankees
alabama, lsu
Boise State 112 wins with a .868 winning percentage
Kentucky (.758), UNC (.738), Kansas (.713), UCLA (.697), Duke (.697), Syracuse (.685)... in that order.
Through the 2010 season, it's the Chicago Bears. They have a record of 704-512-42 for a winning percentage of .579.
Manchester United