This is something I saw on ESPN.
This is a better system than the old passer rating because QBR adds the real life game factors to the QB.
A scale from 0 to 100. 100 being the best, 0 being the worst.
Top 10 Quarterbacks based on this new rating.
1. Tom Brady 76.0
2. Peyton Manning 69.5
3. Matt Ryan 68.6
4. Aaron Rodgers 67.9
5. Michael Vick 66.6
6. Drew Brees 65.9
7. Eli Manning 64.3
8. Josh Freeman 63.5
9. Phillip Rivers 63.2
10. Ben Roethlisberger 59.8
Michael Vick had a perfect game @ the Redskins in the 2010 season. 99.8 QBR rating.