San Francisco with 5
From 1985 to 1997, the National Football Conference won 13 consecutive Super Bowls. The streak began with the San Francisco 49ers' victory over the Miami Dolphins in Super Bowl XIX and was snapped when the Denver Broncos defeated the Green Bay Packers in Super Bowl XXXII.
They won 9 in a row in 1980, that is the longest I can find. They are on an 8 game winning streak now, in the 2010 season, with 2 games remaining. The Falcons won the last 9 games of their 1998 season. They went on to win two playoffs for a Super Bowl appearance where they lost to the Denver Broncos. That would make an 11 game streak including post-season play. In 1980, in a 12-4 regular season, their 9 game winning streak ended when they lost the last game of the season. They were eliminated in the first round of the playoffs.
The Washington Redskins' longest win streak is 10 games, which they achieved in the 1991 season. They went on to win the Super Bowl that year, beating the Buffalo Bills.
The Denver Broncos
The Lombardi Trophy is present to the winner of the Super Bowl. It is impossible to win the Lombardi trophy without winning the Super Bowl.
buffalo went 4 times in a row with out winning
You have to get a winning streak points. The winning streak points is 2500. It's pretty hard but try your best! If it said something about a prize after the game over sign, it will have things that are unlockable. There are 5 levels in Master Mode. Good Luck!
The longest winning streak to open a season would be Howard College in 2009. The team won 57 consecutive games before losing in the playoffs. The team ended up winning the 2009 JUCO World Series with a record of 63-1. This is of course a JUCO team and this is beats any other record held by any other division (NCAA D1, D2, D3, NAIA)
That would be Denver Broncos in Super Bowl XXXII 31-24 against Green Bay in 1998.