3. Tom Brady (New England Patriots)
Brady is the epitome of the underdog. 31 teams passed up on him for nearly 6 rounds in the 2000 Draft until the Patriots picked him up late in that round. In 2001, Drew Bledsoe got hurt, and Brady got put in, and the rest is history. They went on to win the Super Bowl that year on the way to 3 SB victories in 4 years. In 2007, Brady lead the Patriots to a 16-0 regular season and back to the Super Bowl, but lost it in the final seconds. His historic battles with Peyton Manning will be remembered as one of the greatest QB battles of all time.
2. John Elway (Denver Broncos)
The 1st overall pick in the 1983 Draft made an immediate impact, but not for the team that drafted him. He was drafted by the Baltimore Colts, refused to play, was traded to Denver, and the rest is history. He got to the playoffs as a rookie. He went to win 3 Super Bowls and is now in the upper management of the Broncos.