Summary: In this article we show that God’s choice in Aquinas is subjected to necessitas consequentiae and is anthropomorphic in the structure. In fact ideas are presupposed which are co–eternal with God, and then God is obliged to choose the best possible realization among the possible ones. Completely different is the model in Duns Scotus and in Ockham, where the voluntas Dei only presupposes the voluntas Dei and God chooses a world which is good since God has chosen it.