CalamityX11
49ersDevilsYanksNets
The reason I think that is surprising is because of the archaic football played in that conference. Those two are clearly the exception, rather than the rule. There are good athletes on offense to be sure but the systems they play in retard their growth so much that you normally get get clowns like Troy Smith, Ricky Stanzi, Craig Krenzel, Terrel Pryor and the like. The Big 10 does produce good linemen and some good front seven types on defense though. I think the best prepared pro style offensive players come from the PAC 12.
To be fair, the clowns you've mentioned are the recent QBs of the Big 10 football, where back in the day, big 10 QBs were actually really good/legit....