In terms of what? This is an open-ended question.
Most Championships? Green Bay Packers - 13
Most Super Bowl wins? Pittsburgh Steelers - 6
Merchandise sales & TV Ratings? - Dallas Cowboys
The Chragers after the Colts.
The saints
NEw Orleans Saints
Eagles
Um, yes. By definition, that is precisely what the offense does, and is in fact the object of the game.
No, NFL players typically specialize in either offense or defense and do not play both positions during a game.
No, in the NFL, a fumble cannot be advanced by the offense. If the offense recovers their own fumble, the ball is dead at the spot of the recovery. If the defense recovers the fumble, they can advance it.
Geno Smith. He has the most accurate arm, the most intelligence and can play in any type of offense.
In American football there are 11 players on defense as well as offense.
In the early 19 hundreds many QB's played offense and defense.
Patriots
Saints and Patriots