I would go with gyorko. Having him on your roster so someone else wont. especially in a keeper, (not saying he will be 1 of 7 keepers, but he has the potential and depending on your roster he could be), however, Im not counting michael young out this season. I think he is more likely to be in the FA pool compared to Gyorko. So I would have Gyorko.
Will not be a surprise to you given all the other answers but I would go with Gyorko as well. Given keeper league nice to have option to keep him if he really breaks out, although I am not expecting that. However you never know with young prospects.