I am biased, since Audiav is just plain better on a variety options, since they address more than just vibration and inertness. I do like some of the shelves, however, from some other competitor's but you did not mention them in your short list of those three.
BUT, if I had to buy one of the three over, rather than an Audiav piece of course, I would get:
Finite E's Grand Master for looks... Grand Prix Reference if I was inviting teenagers over to look at the carbon fiber, and Silent Running Audio if you removed half of my brain (the logic portion of course :)
I am a "got-so-many-features-you-dont-need-hype" kind of guy, so I think that offering a platform that can address ALL the big concerns at once is the way to go. I do not like manufacturers that create silly marketing spins about sand and filament boxes when they dont really do anything but add mass.
My perfect ideal is one that holds massive weight and blocks:
-Heat
-Vibration
-Magnetic Fields
-Induction
-Static
Fully topped in thick Granite...
and happens to have a gemstone in the emblem :)