Anyone who believes that the NCAA is in the business of governing college athletics in a non biased way is fooling themselves. The NCAA is in the business of making money and they are not about to hand down a ruling that would damage their bottom line.
OSU: Why on Earth would they suspend these players in one of the marquee matchups of the BCS? It would essentially deflate any interest the casual CFB fan would have had in this game and then the ratings would be down.
Auburn: This should be a no-brainer, they were caught (regardless of Cam's alleged ignorance) and nothing was done and why? Because you aren't going to rule the most marketable player in college football ineligible for the two biggest games of the year (SEC CG and NC).
The NCAA has zero credibility as far as I am concerned and they continue to show through their actions that they really are just making it up as they go. If you are marketable and make the NCAA money, rest assured nothing will happen to you and even if you get caught RED HANDED all you have to do is claim ignorance of any wrong doing and they'll let you off the hook. Shameless favoritism.