Ferguson has good size, a big body, good speed, and gets pressure easily. But he does have trouble with speedy players. A likely top 100 pick.
Ellis is a good NT, good pass rusher for his size, good tackler overall. But on the slow side.
McAllister gets good pressure, strong and tough. Good tackler, and a good run stuffer. Tad bit slow, and not a top flight pass rusher
Jernigan is a true run stuffer, he is just a big body, a good tackler, and a good pass rusher. He does get pushed around too much at times.
Moala is a big DT, likely a NT, but really slow, and a raw athlete
A good sized DT, run stuffer, good tackler. Not the fastest, and would need to bulk up more to be a NT
Coleman is fast and speedy, gets seperation, but can also make easy catches. Has problems at times with difficult catches, and coughs up the ball too much
Carrethers is a big body Lineman, run stuffer, a NT in the NFL, good tackler overall, just slow.
Sutton is a tackling machine, has decent speed, and a good pass rusher. But he does have some weight concerns, is a 3-4 End or maybe a NT? Plus his production was down in 2013. But I expect him to be a Top 50 pick.