Revision 2 of LCD2 is quite different in tonal balance to Rev1 though. Rev1 is (IMO) quite a bit more muffled-sounding, meaning treble takes a noticeable step back compared to Rev2. If OP actually prefers that, then LCDX is counter-intuitive even if it is the most balanced of the bunch.
Have you heard the LCD-X? The treble is smoother and better-defined than the LCD-2.2. The OP likes lush thick mids (LCD-3), but wants more separation, detail, and soundstage (LCD-X). And that's why he should audition both.