Closed Over-ear Cans Under $200

Hey folks,

I know Tek Syndicate recently did a set of headphone/gaming headset guides, but I am looking for some additional advice from some headphone nerds out there.  Here's what I am looking for:

 - Closed back over-the-ear design

 - Signal response curve that's favorable for wide variety of music genres (from thrash metal to DnB to folk, etc)

 - Great sound without need for an amp

 - Comfort for long listening periods

Any suggestions?  I was originally looking into the Audio Technica ATH-M50X's mainly due to price and a fairly level signal response (so I've heard) but I know there's a real love-hate division out there on them, so any advice would be great!