Haloti Ngata - 6'041" 338 lbs., 37 bench reps and long arms (12th overall pick 2006)
61 tackles, 3 sacks as a Senior (huge jump in tackle production from his Junior year, when he had 46)
Star Lotulelei - 6'031" 320 lbs.
42 tackles, 5 sacks as a Senior (same tackle production in Senior and Junior years, which suggests he may have plateaued)
Like I said, in a normal year, Lotulelei would be a late 1st round pick (20-32).
In 2012, Cox, Poe, and Brockers, all would still have been picked before Lotulelei had he come out that year.
Can you imagine their stats if they all stayed in college one more year and came out in 2013 like Lotulelei? They still would have been picked before him.
If video shows that he's destroying guys off the ball on a consistent basis, then he's definitely worthy of a 1st round pick. But saying he's "the best DT since Ngata" is a little off.
Raji, Watt, Dareus, and Fairley were all better DT prospects than Lotulelei without question.
Raji - 2-gapping NT with great penetration
Watt - Stat killer in college, physical freak DT/DE
Dareus - 2-gapping DT with great penetration as an underclassmen in the 3-4
Fairley - Uncanny foot speed, and elite stats as a 1-gapping UT in the 4-3.