I find it more direct to associate the sons of God as being angelic creatures who left their first domain. This also happens to be the perspective of many extrabiblical books such as the Book of Enoch.
Charles Clough has some good study material in his Framework series. (about 250hrs of mp3 studies)
He begins discussing he differences in Creationism and Evolution, as well as many arguments used by accommodationists.
I find it more direct to associate the sons of God as being angelic creatures who left their first domain.