If you ask me, you can't really pile on a team if they have a weak conference. You can't blame Ohio State for not playing anybody because they have to play their conference. You can, however, blame them for playing a bunch of non-conference cupcakes like they did last year. But let's not forget that in 2005/2006 they played a home-and-home against Texas, and this year they start one with USC, so it's not like they aren't willing to take on a challenge. Aside from USC, I think they (the Buckeyes) could also get a good challenge from Michigan State, Illinois, Wisconsin and Penn State, and let's not write off Michigan either. Michigan will be a big question mark but remember it will be the last game of the season, so the players should have a much better grasp on the system in December than they will in August. I wouldn't give Ohio State the Big Ten title just yet.
USC-Ohio State will be the biggest non-conference game of the year. I think its awesome that there are games with national title implications in September!
USC has a lot of question marks, especially on offense with a new QB, receivers that were only so-so last year, and a young offensive line. The USC defense will be stout again, with two of the best LBs in the country in Rey Maualuga and Brian Cushing. But I still expect them to win the Pac-10 again.