It is tied between the Minnesota Vikings, the Buffalo Bills, and the Denver Broncos at 4 losses each. Though the Broncos have 2 Super Bowl wins to their name and the Vikings and Bills have none. Also, the Bills are the only team in NFL history to make it to the Super Bowl for a consecutive 4 times and lose them all.
dallas
Dallas Cowboys
The Steelers with 6.
Buffalo
Steelers
the Pittsburgh steelers because they have won 6 super bowls
The Pittsburgh Steelers won the most Super Bowls with 6 total wins.
steelers
The Dallas Cowboys
Dallas Cowboys
Pittsburgh Steelers with 6
Buffalo bills