I don't think they both are worth the asking prices as well as LCD3. I still like Sony R10 (bass heavy) the most. But if you are looking for the best headphone that is currently available in the market with no limited budget, I think they are just only two options now. They are the beasts from two species. You can borrow my Abyss to compare with others this weekend if you want to. I'm appreciated to let you listen to it and share to people.
FYI, I'm STAX distributor so I got the best price from STAX. I got least margin(%) from JPS compared to other brands I sell, Fostex, Senneiser, HifiMAN, Audeze, etc. And since I started my business as headphone store, I have never sold any high-end headphone to head-fi members, not even one unit. I became a member since 2008 and have only 81 posts. I should post more If I am being affiliate with any companies. Also, If I really mean to sell it, I can become sponsor and create a selling treat.
I'm just a headphone lover like you guys but its funny since someone put MOT status on my name and I can't even share my experiences straightforwardly.
I do believe that very few members here have more experiences that I am. I do have headphone demo over 200 models, +30 DACs, +10 sources, +15 amps and more which all are in my hand now. I started to buy and compare headphone since 1997. So I think my post should have at least some useful information for some users which I'm cheerful to do that without any benefit.
But this is internet world, people here don't know real me. It's hard to make people think of me in that way.