Found a great site for the hard-to-find stats like drops: Pro Football Focus
It’s particularly good for the CB discussion: Cumulative Cornerback Summary, which includes stats for:
Thrown At
The cumulative number of times the player was thrown at in coverage.
Receptions
The cumulative number of receptions made into the player’s coverage.
Percentage Caught
The percentage of receptions made into the player’s coverage.
Yards
The cumulative number of yards gained in the player’s coverage.
Average
The average number of yards/completion in the player’s coverage.
Yards After Catch
The cumulative number of yards after catch gained in the player’s coverage.
Long
The longest pass completed into the player’s coverage.
Touchdowns
The cumulative number of touchdowns scored in the player’s coverage.
Interceptions
The cumulative number of interceptions made by the player.
Passes Defensed
The cumulative number of passes defensed by the player.
NFL Rating
The standard NFL quarterback rating for passes into the player’s coverage. (For defenders, the lower the better.)
Right out of the gate I see that Darrelle Revis is only credited with 23 passes defensed, so either they use a different evaluation process or the data is incomplete. I think it’s the former. Specifically, I think it’s just a bunch of guys that comb through the network broadcasts of all 256 games and manually enter in the datapoints they’re interested in. So while it may not line up perfectly with the official stats from the Elias Sports Bureau, I don’t think that much matters as long as they’re consistent. Meaning their numbers can be used to compare players against each other using only their numbers.
According to them, Asomugha was only thrown at 27 times. 27! Compare that to Revis, who was thrown at 106 times. Then again, the opposition QB rating when throwing those 27 passes at Asomugha’s guy was 101.5. Ouch. (Revis’ rating against was 32.3, far and away best in the league.)
They rank the two Bengals receivers 4th (Hall) and 8th (Joseph) in the league, so if you go by them Hall was snubbed but Joseph was not. However, Asomugha is greatly undeserving, ranked 22nd behind guys like the Giants’ Terrell Thomas.
In order, they rank the AFC cornerbacks as follows:
Darrelle Revis - NYJ
Leon Hall - Cin
Brandon Flowers - KC
Champ Bailey - Den
Jonathan Joseph - Cin
Domonique Foxworth - Bal
Leigh Bodden - NE
Lardarius Webb - Bal
Brandon Carr - KC
Steve Gregory - SD
Nnamdi Asomugha - Oak
Mike Adams - Cle
Tyron Brackenridge - Jac
Vontae Davis - Mia
Will Allen - Mia
Brandon McDonald - Cle
Everyone else in the AFC has a negative overall rating.