How long did you try it for? Do you actually think the difference between the LCD-X and the other flagships are that big?
I probably listened to it for longer than any other headphone at the meet, though that isn't truly long enough (I like to listen to headphones for a long time before forming a solid opinion).
My response to most of the headphones at the meet was "That sounds nice, I enjoyed that.", while my response to the LCD-X was an immediate "I NEED this headphone!" I also was able to A/B the LCD-X and LCD-3, and listened to the same track on both the LCD-X and SR-009.
The LCD-X was one of the least accurate of the high-end headphones I tried (with the exception of the other Audeze headphones there, it was one of the more accurate Audeze headphones), but had a certain seductive quality and very euphonic sound. The way it presented music made everything sound far more dramatic (without really having a sharp "exciting" type sound). Compared to the LCD-3, it was far less warm and more accurate, but didn't lose any of the seductive qualities of the LCD-3 had (in fact, it may have had more of those qualities).
The best quality of the X, though, is the microdetails. Every *single* little detail is front and center and very clear, almost shockingly so.
I am more interested in the euphonic type sound, if you want a purely accurate setup, you probably won't like the LCD-X (or really any Audeze headphone), but as far as my preferences go, the LCD-X hit every note the way I wanted it to.
I wasn't the only one that was really impressed by the X, it was one of the more popular headphones at the meet, and the people I talked to at the meet thought it was the best in the Audeze line.