I'm really liking my MDR-Z1R. I find it extremely immersive, particularly for orchestral music. The spatial presentation of being on the conductor's podium is very immersive, hearing first violins just to my left, the soloist just to my right, brass to my right and a little further away, booming bass drums a bit further out, and the choir behind them is so engaging. All of the weirdness in the tonality works for that sort of presentation and if I EQ out that weirdness, the compelling spatial presentation is lost. Then it sounds like I'm in the audience rather than up front with the conductor. I find it captures the energy of orchestral music better than most headphones I've tried. Once I figured out its intended experience, I enjoy it everywhere. EDM also sounds really good, since the bass is powerful, and the vocals are pushed further away which works nicely with more aggressively mixed/mastered tracks. Sure, the peaks at 3K and 10K can be distracting sometimes, but they don't bother me all that much. I keep thinking that I should have gotten these headphones years ago.
My Aeon 2 Closed with perforated earpads has been handed off to my wife. After owning it for two and a half years, I got sick of trying and failing to enjoy it. The dynamics were weak no matter what I did (unless I used dynamic EQ, which restricts me to computer sources), vocals were too forward and intense, and something was always off about the timbre. Without any inserts, it had rubbery bass and too-sharp treble. With the thickest inserts, it was too dead, with the trailing ends of notes truncated, like everything was played staccato in an anechoic chamber. With the middle insert, it was sort of both, but to smaller degrees each. It's the thing where if I'm listening to it as background music, then it sounds just fine, very detailed and neutral. But the more I paid attention to the music, the less I enjoyed it. My wife isn't an audiophile, so she isn't as picky as I am about the sound, and she thinks the lack of dynamics is a good thing since she is sensitive to sudden sounds. She's happily using it now, which is great!