After seeing both of them play, Alt extensively and Parrish only two games, Alt is a MUCH better passer. He was the primary reason CDH beat EP in the state championship game this season. Parrish could turn out to be a great QB, and with QB specialist Horton now on staff those odds increased, but as a pure passer at this stage you would have to favor Alts abilities.
I would agree with those who say Alt's career is brighter in hockey. I have heard that he may favor football, but he does have a higher ceiling in hockey. It will be an interesting decision.