I will admit that I'm biased when comparing Vol players vs those players that made the wrong choice of school but I can also step back and just be totally honest and in doin so I think Barnett is the most disruptive and productive DE in the country that I know of.
Myles is a stud with a high ceiling and all the measurables and was also high rated coming out of high school as he should've been but when it comes to facing the best competition and sealing the edge, pushing the pocket, stopping the run, getting after the QB and just causing offenses probs, DB is better.
If DB took down all the QB's that slipped outa his grasp last year he would've finished with 15-17 sacks. He is a sack master but even with not getting them all to the ground he is damn disruptive and the best at TKL's and TFL. I think we are lucky as hell he is a Vol and I feel he will play himself into Vol folklore this year under Shoop and that aggressive attack.