The NFC
Green and Gold (Packers are home team).
The Green Bay Packers of the National Football Conference will be considered the home team for Super Bowl XLV. In 2012, the American Football Conference champion will be the home team.
The Atlanta Falcons were the home team for Super Bowl XLI.
No team has ever played a home field super bowl.
So far, no team has played on its home field in a Super Bowl.
The designated "Home Team" alternates between the AFC team in even-numbered games and the NFC team in odd-numbered games. This year being Super Bowl 45 (Feb. 6, 2011 in Dallas, TX), the home team is the NFC representative.
The Indianapolis Colts are considered the "Home Team" for Super Bowl XLIV.
The home team designation for the Super Bowl alternates each year. As a result, the representative of the National Football Conference -- the San Francisco 49ers -- will serve as the home team for Super Bowl XLVII in New Orleans.
49ers
The team who last won the super bowl would be the new york giants in the year 2011.
There has never been a team to play a Super Bowl on their home field. The closest was Super Bowl XIV when the Pittsburgh Steelers beat the Los Angeles Rams at the Rose Bowl in Pasadena, CA. and Super Bowl XIX when the San Francisco 49ers beat the Miami Dolphins at Stanford Stadium. The NFL awards the Super Bowl to a city four years in advance. If a team won their conference championship and the Super Bowl was scheduled on their home field, the game would go on as planned.