A well known member of the Fieldgulls community came over to SDB and called Jordan Hill a better version of Craig Terrill. I prefer poor-man's Kawann Short, but if we are comparing to past Seahawks, then a better version of Craig Terrill is a solid comparison. If Terrill had been a better run defender, good enough to play 3 downs, then I think it's a decent comparison. Terrill lacked strength but was quick, smart, and tenacious.
Hill will probably never be Melton or Atkins. Melton ran a 4.65 and Atkins ran a 4.75. For perspective, Datone Jones was hands down the most athletic 3-tech this year and he ran a 4.80. Hill ran a 5.17 at the combine. Hill is very quick, but he's not especially athletic.