ESPN's fantasy football writer Eric Karabell recently released his early list of the top 50 fantasy WRs for the 2012 season. I was a bit surprised to see that he has Jeremy Maclin rated ahead of DeSean Jackson on this list.
He has Maclin rated at #21 in his "5th tier" of WRs that he would take in the 4th or 5th round. Jackson, however is lumped in with the "6th tier," which is sort of a "everyone else" group that he'd consider taking beyond the fifth round. He's got Jackson rated at #28.
So there's not a huge difference between the two, but I think it is notable that in the eyes of some national media Maclin has passed Jackson. Now this is only fantasy football that we're talking about here, but you could certainly make the argument that Maclin might have passed Jackson in real football as well. Either way, it's close.