NC Dawg, I hear ya my man, I would be very concerned for this season if we weren't loaded with talent all over the O! I would put HM right in the middle of the pack of the QB's you mentioned, the difference being he has a lot of weapons at his disposal!
Playing the position for my entire career and now coaching QB's allow me this. If you put a solid O line on the field with some stud RB's and some above average WR's with good hands and good route running skills, then you'll be just fine with an average QB that can rely on the talent around him to make the big plays. Look at Bama's QB's under Saban.
As far as our D goes, Pruitt will have em' prepared and ready to play, nuff said!
