Grabbing Julio's statistics vs LSU is not going to highlight an accurate stat for "Julio vs Peterson" as he wasn't always matched up with him, in the '08 and '09 games. But the 2010 match-up definitely was PP7 vs JJ8. And it's not as dominated by Julio as you and WFColonel seem to think.
2008 was their the first match-up, both were Freshman, and the stat line read:
2008: Alabama 27, LSU 21
Jones: 7 catches for 128 yards
Peterson: 4 tackles, 1 interception
2009 was
a little different
2009: Alabama 24, LSU 15
Jones: 4 catches for 102 yards, 1 TD(The TD was a 73 yard screen pass that PP7 was not matched up with Julio for)
Peterson: 3 tackles, 3 pass breakups
The announcer actually points out that Julio is matched up against a safety.
They're both freaking stud athletes. There's no arguing that they should both be rated highly, physically. Hell, for all we know Julio is an 81OVR. Their position specific ratings are going to be subjective in discussion, though.