Through the 2008 season, the Cowboys.
The Cowboys have been to 8 Super Bowls (V, VI, X, XII, XIII, XXVII, XXVIII, XXX) and won 5 (VI, XII, XXVII, XXVIII, XXX).
The 49ers have been to 5 Super Bowls (XVI, XIX, XXIII, XXIV, XXIX) and won all 5.
The Pittsburgh Steelers have 6 Super Bowl victories. They have been to the Super Bowl 7 times.
As of the start of the 2008 season, the most Super Bowls that have been won is 5 and have been won by the 49ers, Steelers, and Cowboys.
Cowboys have been in 8, the 49ers 5, the Steelers (including 2009) have been to 7.
5 times. The first time they lost to the Cowboys then they beat the Redskins in the '72 Super Bowl then the following year they beat the Vikings.(3 straight super bowl appearances) then they lost to the Redskins and the 49ers. Only 2 Wins.
Three ... Super Bowls XXVII and XXVIII with the Dallas Cowboys and Super Bowl XXIX with the San Francisco 49ers.
8
The Dallas Cowboys have been to the Super Bowl the most with 8 appearances of which 5 were won.
5
Through Super Bowl XLIV, no team has been shut out in a Super Bowl. The fewest points scored by a team in the Super Bowl is 3 points by the Miami Dolphins in Super Bowl VI when they lost to the Dallas Cowboys, 24-3.
Twice against the 49ers -1981 season (Super Bowl XVI) and 1988 season (Super Bowl XXIII).
The Dallas Cowboys and the Pittsburgh Steelers have been in the Super Bowl 8 times each. See link for details.
San Fransisco 49ers