I am guessing you skipped the last two drafts altogether, where there have been not one, but two RBs drafted in the top 5. You can cite NFL.com as a source, or just watch them. Guice is a good back, but it is a pretty large margin between the two. As far as athletically, I have very few doubts that Barkley will test much better as well, he is already pretty famous for being the strongest guy in the weight room at penn state, in a locker room with many 300+ pounders. fwiw, i would take darnold number 1, but the best player in this draft is more than likely barkley.