6 times (so far).
Bart Starr (1966)
Terry Bradshaw (1978)
Joe Montana (1989)
Emmitt Smith (1993)
Steve Young (1994)
Kurt Warner (1999)
Brett Favre (1996) won the League MVP, but the Super Bowl MVP that year was surprisingly awarded to Desmond Howard.
Peyton Manning will obviously have an opportunity to become the 7th in the 2009 season, when he plays in Super Bowl XLIV.
Super Bowl XXV (1990 season) had the Giants beating the Bills (both from New York) Super Bowl XXIX (1994 season) had the 49ers beating the Chargers (both from California)
Eli Manning has one more Super Bowl win than Peyton Manning. Eli's two Super Bowl wins came in the 2007-08 season and 2011-12 season. Peyton's Superbowl won his Super Bowl in the 2006-07 season.
Pro Bowl players on the two Super Bowl teams will not participate in the Pro Bowl.
It looks as though Tom Brady will win his first MVP trophy for the 2007 season.
2000-2001 Season. Ravens and Giants were both 12-4 and meet in the Super Bowl.
The 49ers adn Bears both hand 15 win in the Regular Season when winning the Super bowl. The 1972 Miami Dolphins had a perfect 17-0 record and won the super bowl.
Twice against the 49ers -1981 season (Super Bowl XVI) and 1988 season (Super Bowl XXIII).
In 1972, the Dolphins team completed the NFL's first and only perfect season culminating in a Super Bowl win, winning all 14 of its regular-season games, both of its NFL playoff games, and also Super Bowl VII.
Yes, since they play in different conferences it would be possible for both to make the Super Bowl in the same season.
In the 1997-1998 Season, the Broncos played the Packers in the Super Bowl.
At the superbowl
As of Super Bowl XLII, that has occurred once and that was the 1972 season when the Miami Dolphins finished the regular season 14-0 and then beat Cleveland and Pittsburgh in the AFC playoffs to get to the Super Bowl and beat Washington in Super Bowl VII to finish the season 17-0.