I'd probably have to go with Clowney based on freak potential. If he ever decides to really try, he could be great. Love Johnny...and I hope the Vikings pick him...but I could easily see him becoming very Riley Nelson like at the next level. If he thinks too highly of himself he's going to get pulverized. If he channels his inner Russel Wilson and works within an offense and only becomes Johnny Football as a last resort, I think he could be a good NFL QB. But in both cases, tigers don't usually change their stripes. Of the two, Clowney probably has the best chance to stick around...just on sheer talent.