I think both divisions are more up-in-the-air than usual.
The wildcard in the West is that Nebraska has a schedule that could be VERY favorable for a CG run.
The wildcard in the East is that the Spartans will probably have a defense good enough to potentially beat anybody and an offense bad enough to potentially lose to anybody.
The secondary wildcard in the East is that obviously the Buckeyes have a new coach. Ohio State has won at least a share of the B1G-E every year that there has been a B1G-E to win, but those all occurred under HC Urban Meyer and he has retired, how will Ryan Day fare?
I could definitely see Nebraska getting to the CG because they host what are probably their four toughest B1G opponents (tOSU, Iowa, Wisconsin, Northwestern). OTOH, this is still a team that started out 0-6 and finished 4-8 last year so picking them to win the division may be a bridge too far.