The athleticism also favors Sanders.
That is why Sanders is going to be drafted before Dart. Now I will agree on some decision making things that have me worried about Sanders.
My concerns with Dart are his lack of elite Arm Strength...think Jared Goff arm strength in a smaller body (Goff is a really good QB, but does not have elite arm strength-his accuracy and decision making have become elite). His lack of elite decision making (some struggles against better SEC defenses). His lack of elite size.
I think Dart has a chance, but I wouldn't take him in the first round. I don't think I would take him in the 2nd, but I guess we will see how the workouts go.