Giants and Redskins
There are dozens of quarterbacks that have started playoff games with different teams. Two are Brett Favre and Chad Pennington.
No quarterback has won the Super Bowl as a starter on two different teams.
The Washington Redskins, the Green Bay Packers and the New York Giants have all won three Super Bowls with three different quarterbacks.
No starter has ever won a Super bowl with 2 different teams.
Through Super Bowl XLV, 2 QBs have started for two teams ... 1) Craig Morton - Super Bowl V for the Cowboys and Super Bowl XII for the Broncos. 2) Kurt Warner - Super Bowls XXXIV and XXXVI for the Rams and Super Bowl XLIII for the Cardinals.
For the upcoming Super Bowl 44, the starting quarterbacks for both teams are Peyton Manning and Drew Brees.