These positional rankings have undergone an important change as the draft approaches. As opposed to during the season, I now condense the juniors and seniors into one list that includes all declared draftees. So the pair of "top 5s" now consist of the guys in the draft, and then the players who could have been draft-eligible but opted to stay in school.
You can check out my latest 2010 mock draft here and the latest Big Board here.