I own the LCD2s, LCD3s and LCD4s. Thought I'd share my experience here about the "lushness" of the midrange.
I first owned the LCD2s and totally fell in love with the sound. I've tried (and owned) a lot of other headphones at this point and I keep coming back to the Audeze sound. I decided to get the LCD3s because I loved the LCD2s so much. The LCD3s took everything I loved about the LCD3s and then some - I would actually say that they do have a lush (even more than the LCD2 - which I would argue actually has quite a lush midrange) midrange. When people say "lush midrange", I think that can mean different things though. For me, that means not only an openness in the frequency range around 1 and 2 kHz, but a transparency there, so - detail, perhaps. This part of the frequency range and transparency connects me to an emotional part of a singer's voice that I can't explain and that, to me, is what I'd call a lush midrange!
After trying other Audeze and non-Audeze headphones, no other headphones besides the LCD3 does this like they do it! It's beautiful.
EDITED: I'm referencing a 2019 pair of LCD2s and 2022 pair of LCD3s.
Have to agree based on all the reviews I have read, people discern different things. A top producer has described them as 'analytical' and 'not very fun to listen to' and I believe this in reference to the large resolution and frequency response. A lush midrange might be the choice of word if you compare something like DT990 to LCD-3 but if you take an LCD-3 at face value, it's probably not the most "lush". I am expecting to hear such things
