Good few entries coming in this week , keep them coming , if you could try to explain to us what the phones you have now bring that your previous headphones were lacking that would be of interest to lots of us I'm sure
Since we're talking end-game here, everything has to be perfect, at least subjectively.
D2000 - Excellent comfort and soundstage. Not the most transparent and not fast as planars or top dynamics. Mids weren't the best for music, although exceptional for gaming and movies.
HE-500 - not enough soundstage depth, also a bit fuzzy in the centerstage (ill defined)
HE-6 - Amping requirements means you're stuck to a speaker amp on a desk. There are decent headphone amps, but I much preferred speaker amps driving HE-6. Also, comfort.
LCD-2.2 Classic - No real complaints here besides the weight. It's a laid back headphone, but it does that job perfectly. It doesn't sound artificial while being laid back. It's not trying to do something that it can't do, which makes it my absolute favourite headphone under $1k
LCD-3 Classic - Didn't have LCD-2's slam. Seemed a bit softer. Didn't like it's voicing as much as LCD-2, even though LCD-3 was technically better in all sound aspects. Also, more pickier with amp synergy.
Winner - HD800 - The most real-life sounding headphone of the bunch and a speaker like kick. The least artificial sounding headphone I've tried yet. No need to adjust to a characteristic FR tilt that almost all headphones come with. Best resolution, imaging, soundstage, mids, ambience, bass resolution and impact (LCD-2 would tie the HD800 here for me. LCD-3 would come beneath that for me). I've also found this to amp well with most of my lighter gear and so can move my rig around with lot of ease. It's really good for music, but it's the undisputed king for gaming. For movies, it ties with D2000. Also, beats the other top phones in comfort.
I'm pretty much done with headphones for the time being. Stax might be something I consider in the future, but one also has to take into account amping. So it's almost building a system again. Now I use speakers 80% of the time, and HD800 fills in the rest of the time (mostly at night).