Mike Mayock, who was one of the only draft gurus to have the Bills pick Donte Whitner in 2006, has a video on Nfl.com (mock picks 11-20) and has the Bills picking Tenn State CB Rogers-Comrartie.
He opens by saying not enough value at #11 at WR and then makes his case for the corner.
This of course depends on whether he is there or not, but personally, I like the pick granted there are other receivers in the later rds that can make an impact.
However, I can argue that CB could be just as great a need as WR, especially if you have questions about McGee as a number one, which I definitely do, much more so than Lee Evans as a top wideout.
If this is the pick I am happy, but only if we still can nab at least two offensive weapons later at WR and TE.