I was actually planning on writing him and asking just that. I wrote Football Outsiders to find out when they'd have DB metrics out, they said it'd be in their book this summer or fall I think it was.
I remember Holley on EEI was quoting some metrics or numbers - not sure where from - and Felger reluctantly acknowledged (and dismissed them) later that day - the numbers basically showed that Samuel and Hobbs were equally effective this season.
I, for one, have been hard on Hobbs at times this past season b/c I thought at times he struggled in the soft zone. But there are factors I wasn't taking into consideration at the time and will now admit I was wrong to criticize Hobbs - first of which being that Hobbs often spends more time covering the #1 wideout. Take the Super Bowl for example. He helped shut down Burress the entire game except for the play that shall not be mentioned, which he had no real choice but to cut off the slant and hope the blitz got there in time.
As I said in another thread, the mere fact that the coaching staff put Hobbs on Plaxico in that situation, with two injuries, is awfully telling about how they view the abilities of Hobbs and Asante.
My bottom line view of Hobbs - despite his straight-line speed, he doesn't seem to have the same recovery & closing speed Asante has and therefore isn't as naturally gifted in the soft zone they've been playing. But at the same time, despite his lack of size, Hobbs is stronger than Asante, and really seems to be a better man cover. With perhaps a slightly more aggressive approach next season, Hobbs will be more than adequate as as our #1 CB, and might even excel in the situation.