I started with a Beyerdynamic Lagoon that I got for my train commutes. It was pretty good cabled, far better than wireless. When it broke (crappy plastic construction) I looked at the typical Beyers for production. Very good cans. But I happened to audition an Audeze LCD-2 closed back and fell completely in love. It's big, heavy, comes with a crazy big flight case and I don't care because it's extremely transparent and does incredibly accurate stereo imaging. It's less neutral than my monitor speakers so it's a good double validation.
Modular playlist on SoundCloud