Those are the four headphones I've been looking at. I'm still very torn. I'm feeling like the 598's or the X1's may be best for me. Comfort and good build quality are always nice. I'd rather not spend more than say $220 or so on headphones. After deciding on that, I'd like to look into buying a good DAC or sound card. That said, which would be better for someone who games often on PC and enjoys listening to music often? The DAC or sound card...? I'd also not really enjoy spending more than $200 on the card or DAC.
I hope this information helps someone help me. :) If you need further information from myself, feel free to ask.