Julio was much more physical, probably had a better vertical, and was better at blocking down field.
Yeldon could become the best ever, but I don't think he will end up being the best we'll ever have.
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My thing on Auburn in 2010. Cam was a freakish athlete and a beast and made me very mad in the 2010 IB, probably the best AU and the SEC will ever see. Nick Fairley, despite his cocky attitude and bad man mentality, he was a beast....Though I think your d-line in 2004 and 2005 was way more dominant.