How does Buddhism describe God?

I've encountered many ideas about the identity of God, ranging from the omniscient, omnipresent, omnipotent as in Judeo-Christian cultures, to that of one who has reached enlightenment. Is it suggested that Buddha is God or that Buddha is one who has attained enlightenment, leaving breadcrumbs behind for others to follow and that another being is God. Or does Buddhism reject God? Or something else that I'm missing?