Right now I'm using my frankenstein W5000s. I've been trying to decide if I want to bother making real cups for them and rewiring them, or maybe transplant them into some more portable headphone (I was at one point hoping to score a fake ESW9 for cheap and put them in and then do new cups and things). I switched from KSC-75s to my old Phonak PFE112s at work so that I could hear things more (its a fairly quite office and the 75's leak a lot of sound). Have been debating on getting some Shure 535s. Even tossed around the idea of trying the Astell and Kern universal version of the JH Angie (or maybe Roxanne, not the one that is over $2K). Also thought about the portable Stax, as I kinda liked the previous version. My interest in going through a bunch of gear has waned a lot though. Wish I had the money to splurge on some JH-13s to see how good they really are. Might see about buying someone's customs and getting them remolded, but I don't know.
Plus I need to find a new source/amp. Thought about trying the Creative E5 since I could use it with my phone at work and traveling and computer at home. There's several other DAC/amps that offer that worth considering as well.