depends on what you listen to. I listen to a lot of classical and sometimes electronic. I'm checking out the Audio Technica ATH-W1000x right now. It might be my next purchase.
The thing I like about some of the AT cans is that they are self-serviceable. This means I can mod them and customize them to my liking, teehee.
Hmm..I know I have blu-tack and dynamat lying around somewhere..