The Steelers won six Super Bowls and lost two, this comes out to a .750 winning percentage.
Pittsburgh Steelers have the most super bowls winning it 6 times
How many football Super Bowls had been held in 1981
The San Francisco 49ers are 5-0 in the Super Bowl (100%)
Because that's the number of Super Bowls the Redskins have won. They have played in 5 Super Bowls, winning XVII, XXII, and XXVI and losing VII and XVIII.
To be a dynasty you have to dominate the sport for multiple seasons. The Patriots became a Dynasty after winning 3 Super Bowls in four years. The Bills could be considered a Dynasty for going to 4 straight Super Bowls
The Green Bay packers played in 4 Super Bowls winning 3.
The Dallas Cowboys played in eight Super Bowls, winning five.
Quarterback Roger Staubach was a member of five Dallas Cowboys football teams that played in the Super Bowl between 1971 and 1978. But he started only four of them, winning two (Super Bowls VI and XII) and losing two (Super Bowls X and XIII).