One of the really big difficulties in looking at all this stuff about creation and science is that we take a lot of our own feelings about ourselves and put them in. We think that where we come from determines who we are and how we should live. I think that is the reason why a lot of Christians intuitively would prefer man to be made in an instant because somehow they feel that where we come from determines who we are. Therefore, if we were made in an instant that would be more glorious than if God made us over time. But I think that is wrong, the Bible tells us that are value comes from what God thinks about us, not by the details of how we are made.