There is a huge difference between Lattimore and Hooker due to the position they play. Historically safeties are drafted lots lower than corners, especially elite corners. I was almost surprised to not see Conley in the first round somewhere. I'm not real sure how deep the CB class is this year but Conley will have a nice NFL career as well.
Love McMillan but he won't stay on the field for 3 downs with today's wide open NFL offenses. This diminishes his value quite a bit in my opinion. I can still see him be a top half of round 2 guy, which is pretty dang good still.