I posted about this a few days ago.
"Passer Rating Differential is the single most reliable indicator of championship potential in the NFL."Updated through season's end with the 12 playoff contenders:
Team Offense Defense Differential
Chicago 95.4 72.9 22.5
Kansas City 113.8 92.7 21.1
Seattle 110.9 94.3 16.6
LA Chargers 105.5 89.1 16.4
New Orleans 115.7 100.3 15.4
New England 97.7 85.4 12.3
Houston 103.1 92.7 10.4
LA Rams 101.1 93.8 7.3Indianapolis 98.7 93.5 5.2
Baltimore 84.5 80.6 3.9
Philadelphia 96.0 93.4 2.6
Dallas 96.9 95.7 1.2
