khatch
100+ Head-Fier
I have an iDecco (same headphone stage as the Nova) and an Anedio D2. Two of my favorite cans are the ATH-AD2000 and the ATH-W1000. Though I can't claim to have ever heard the new W3000ANV, I'm probably familiar enough with the ATH house sound to give you some insights in making your choice. PM me is you'd like to discuss further.