Two players that deserve a lot more feature in this thread than I'm about to give in this single post include Bjoern Werner of Florida State and James Gayle of Virginia Tech.
Werner has crazy ability and could be another J.J. Watt. He just looks like a man amongst boys a lot of the time. I don't know if he'll come out next year but if he does, watch out. He's a little underrated because of his coming from Germany and being relatively new to the sport but I don't care about the back story, I'm just going off the film, and the film tells me, holy crap this kid could be awesome.
The other one is James Gayle of Virgina Tech. I never make this comparison, ever...but his style, not necessarily skill, but his style reminds me of Jason Taylor.
In fact if I had to rank defensive end/pass rush players in the 2013 NFL Draft for their overall ability as displayed on the tape that I've watched, not paying attention to back stories or history, character, not even really knowing the stats of any of these guys, this is how I would put it:
1. Bjoern Werner, Florida State
2. James Gayle, Virginia Tech
3a. Barkevious Mingo, LSU
3b. Jarvis Jones, Georgia
5. Alex Okafor, Texas
6. William Gholston, Michigan State
7. Cory Lemonier, Auburn
8. Sam Montgomery, LSU
9. Brandon Jenkins, Florida State
10a. Jackson Jeffcoat, Texas
10b. Michael Buchanan, Illinois
Now keep in mind, we've got a whole year more's worth of tape to digest from all these guys, and the great thing about young players in college is they keep developing and may surprise you for better or worse. Sometimes they get heavier and just start looking worse. Sometimes guys that were paddle stepping before as they tried to bend the arc are suddenly getting it right. Sometimes guys that had no eyes for the ball suddenly track it a lot better. That's the fun of all this. But this is my current read on the 2013 NFL Draft's pass rushers.
TedSlimmJr mentioned in another threat Margus Hunt. I haven't reviewed his defensive work in a while, close to a year. But if I was forced to rank him as a pass rusher rather than a defensive tackle (which is my first instinct), I might at this moment be tempted to put him above Jeffcoat and Buchanan, because I really don't like those two.