The way I see it, God's omniscience makes this a moot point. Compared to His intelligence, we are all painfully predictable. For example, my dog has free will to ignore me when I say the word, "treat," but will he? No, and I know this, because he LOVES treats. If the word is mentioned within earshot of him, he will immediately be at the feet of the person who said it, looking up at them expectantly.

We all have free will, but our ability to exercise it is still quite rudimentary, like playing hide-and-seek with a child and them calling out, "Are you looking for me?" from the same closet where they've hidden for their last three turns hiding. To them it might seem like we somehow predestined them to hide in that closet, because we just knew they were there, but the truth is that we just know them really well– much like God knows us.