George Blanda was the oldest quarterback of all time. He was the oldest to start a football game as a QB at the age of 43 years old, and then he played as a placekicker until he was 48 years, 109 days old. He played 26 seasons in the NFL, although he does not hold the consecutive starts records - rather now Minnesota Vikings quarterback, Brett Favre, does.
George Blanda was the oldest starting quarterback.
Brett Favre is THE toughest quarterback ever. He is also the BEST quarterback ever.
Tom Brady easily.
John Elway was the most versitle and mobile quarterback in NFL history, before Mike Vick recently made his comeback.
As of 2007 Warren Moon had the all time record for NFL fumbles. His career record was 161 fumbles at that time.
You can check out all interceptions thrown by an NFL quarterback on espn. You have to check out the quarterback statistics and can look at all of the seasons the quarterback played. You can also compared various quarterbacks together.
I think it`s Peyton Manning, but the answer to that question changes all the time.
The two most commonly named are John Unitas and Joe Montana.