Truth be told I'm a little weary of both. From what I understand, both are raw as pass rushers. Both have the ability to be elite but are raw. From what I understand Mingo's issue is that he was far too reliant on a speed rush while Jordan's issue was that since he was asked to do so many other things, he didn't develop his moves well enough. (he has moves so that has to count for something). Now correct me if I'm wrong though.
Dion Jordan looks like the far better player compared to Mingo. First off, he's more of a complete player at OLB, being able to cover, rush and defend the run. Mingo is all speed rush and nothing else. He's a great athlete but Jordan looks like the better football player.