All teams that have won the Super Bowl have become world champions. Since the 1970 merger of the National Football League and the American Football League, the Super Bowl winners have been considered NFL champions.
18-20 teams have won the Super Bowl.
The Cleveland Browns have not won a Super Bowl or even been to a Super Bowl. Have not even been the AFC champions.
17 teams won the super bowl that was the 1st seed
The New Orleans Saints won the Super Bowl on February 7, 2010. They were the 2009 Super Bowl champions. The 2010 champions will be decided on February 6, 2011.
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The Pittsburg Steelers.
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They were at and won Super Bowl xxxv to become the 2000 world champions.
The Baltimore Ravens won the 2012 Super Bowl. They are from the State of Maryland.
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One is the Vikings
Bears.