I personally have Iowa winning a close one, only because I feel the particular Iowa wrestler's personal history makes him a slight favorite in a number of individual matches. I have Iowa winning close at 141, 149, 165, 285; and that is only because I picked Iowa to win close ones in those bouts.
In reality, if asked to pick a winner without picking ten bouts, I would say PSU. I can see Iowa winning any of those four bouts. I can't see them winning ALL of them., and they need them all.