I'm shopping for a new pair of headphones, primarily for dance music, and I think I've narrowed my choices down to these three. I'm curious to see which people would recommend I go with, they all seem similarly-priced and competitive with one another. The DT-770 seem to win out on bass response at the low end, looking at Inner Fidelity charts, and on design/comfort. But I've gotten more than one recommendation to go with the DT-250 instead, because of a supposedly better mid section. Then there's the Custom One Pros, which I can see so many mixed things about. I'm really totally unsure of which way I should go. Which would you go for? I have an Octavart O1 amp/DAC combo unit, as well as a Chaintech AV710 sound card, if the other equipment matters.