I'm just going to put this out there and I think it's OK to disagree on these things but it's worth looking at and knowing..
Looking at the pass rush productivity of Vita Vea, Harrison Phillips, Taven Bryan, and Da'Ron Payne from 2015 to 2017, you have the following pressure percentages:
Vita Vea: 13.33%
Taven Bryan: 12.21%
Harrison Phillips: 8.68%
Da'Ron Payne: 7.18%.
Worth noting that of the four players, only Da'Ron Payne saw a significant positive jump in pass rush efficiency in his final season. His pressure percentages were 6.84% and 5.59% in 2015 and 2016, but jumped to 8.53% in 2017.
The other three all had pressure percentages that were lower in 2017 than what they achieved in 2016. In the cases of Vita Vea and Taven Bryan, those pressure percentages were slightly lower. In the case of Harrison Phillips the pressure percentage went from 9.18% to 8.14% which is a more sizable jump.
Vita Vea has amassed 80 pressures on 600 pass rush snaps during the three years. Taven Bryan has amassed 68 pressures on 557 pass rush snaps during that span.
The only defensive tackles with better pass rush productivity than Vita Vea in 2017 were Maurice Hurst and Breeland Speaks.
After going back and evaluating my evaluation of Vea, I understand why some are exceptionally high on him. He gets pressure.
I even went back and viewed some of his 2016 season again when he couldn't even stay on the field 3 downs. I looked very closely at his game against Alabama in the playoffs.
Although to be honest, I never use statistics the way you provided them here in my evaluations. Some might, but there's too many holes and too many variables to consider it an apples to apples comparison. I don't view it any more significantly than I do runningbacks with the most rushing yards or DB's with the most interceptions. They have about the same use for me.
One of the biggest things that separates a conference like the SEC from the PAC-12 are both lines of scrimmage. It's just a different game. To illustrate this and provide a statistical element to it, you can look at the recruiting.
Just over the past 4 years, the average recruiting class of the SEC ranks 19th nationally. While the average recruiting class of the PAC-12 ranks 34th. That difference is seen along the lines of scrimmage when they play each other. It's almost not a fair fight.
However, Vita Vea could clearly match up with Alabama, despite Bo Scarbrough running all over em.
I look at the guys Vea is getting pressure against in the PAC-12, and they're just guys. They're not up to snuff. Even the hyped or known ones can't even sniff a combine invite. JAGS are overmatched against Vea, and that's what the majority of PAC-12 offensive lines are made of.
Bottom line is, I can consider moving Vea up one spot on my underclassman list above Harrison Phillips and feel ok about it. He's one of the top DT's in this class. I couldn't put him above Payne or Bryan though.
Although I ultimately agree with J, I just don't like the return on Vea for as high as he's projected to be drafted...and that's with feeling that he's going to be a pretty good player. But Haloti Ngata? Ngata was getting darn near double digit TFL and sacks in the PAC-12 when he left. Vea doesn't have Ngata's stamina or balance.
I eventually settle on a kid like Vea in the 20's if we're talking about 1st round. He should at least be on the board as long as Vince Wilfork was.
Speaking of a Vea/Ngata comparison, I liken Taven Bryan to J.J. Watt. That's what gets my blood pumping. I can see it on tape. I've never seen Vea dominate games the way Bryan or Payne have....in the SEC.
If Taven Bryan plays to his potential at the next level, he's the best in this class if you ask me.