Yes I agree that dalethorn is very experienced and most likely knows what he is talking about, but as a headphone reviewer I don't believe he should be equalizing as much as he does. Headphone reviews are meant to help those interested in a particular set, and most people don't eq.
Anyways, he says that the nighthawks may be the best headphones he's owned, and in my opinion they are the third best I've heard behind the lcd 3 and lcd xc which isn't too bad at all considering I prefer them to the beyer t5p, shure 1540, ultrasone sig pro, fostex th600 and zmf vibro. With these phones listed it really all comes down to preference though.