I appreciate that [CBS] take on Ohio State. It highlights the playoff issue that we've talked about ad naseum. Regardless of how bad the loss to Michigan was, Ohio State is certainly good enough on their best day to win the title (see Alabama's arguments about inclusion--and a couple of its recent titles). Heck, they are good enough on their third or fourth best day to win the national title, depending on who they face, and how good a day that team has. There's no team in the field that Ohio State will be scared of.
I would put Penn State a little lower on the list--OSU did beat PSU in Happy Valley. PSU knows it has an uphill climb against at least two opponents. To my mind, it's the two SEC championship game participants, Oregon, and Ohio State who are most likely to win this thing. Notre Dame is interesting, but I agree that they don't have a big signature win. They did beat USC in Los Angeles, which isn't nothing (but also isn't mind blowing). They had an easier time of it than Penn State did.
Feels to me like Penn State got a break in the brackets, which will (probably) lead to playing the winner of ND/Georgia.
On the other side, the winner of Oregon/Ohio State is likely to get Texas.
I'll be surprised if it isn't one of those six teams, and a little surprised if it's Penn State--but if Georgia beats ND, but struggles at QB, that could be the opening for the Nittany Lions.
If I had to pick a winner right now, I'd pick Oregon. It would be Georgia, except for the injury to their QB. Oregon's path--having to play (likely) Ohio State, then Texas--looks like a tougher road than Georgia's, but...injuries.