Gotta dodge all the flowers in a 6 moons review. I got the following:
In absolute terms, LCD-X >AD's but not by much.
In $ for $ terms, the AD is the better value proposition.
My experience with Mr. Speaker's offerings is that there are top or near top tier headphones that are "better" to some degree, but nothing else out there offers the shear goodness per dollar that the Mad Dog and Alpha Dog offer. That is why I'm a fan boy. Well, and Dan likes a similar signature to my preference. And Dan is just a great guy and great business owner.
I think these guys are talking about the XCs & AD's, not the X's.
IMHO (and just like the TH-900s & XCs), there'll be campers and not because they are fanboys or anything but they truly appreciate the respective headphones they're backing.
For me personally, with no disrespect to the Audeze folks as they're really a nice bunch of folks, the XCs weren't my taste irrespective of pricing differences from the ADs. My ears prefer the ADs (and TH-900s for that matter) to the XCs. I'll admit that the more time I spent with the XCs I started to appreciate them more but when I put on one of the other headphones back on, I recall what I've missed.
To give a littler more detail for my preferences, to me the XCs are a little too closed sounding and warm for my tastes. I will grant that the XCs are fast though.