Which Rack Is Better?

I am in the market for an audio rack, and I've narrowed my options down to three: in order of increasing cost, the Atlantis Reference, the Polycrystal, and the Zoethecus Reference. As I see it, the advantages of each are as follows:

1) The Atlantis Reference is very heavy and sturdy, it has a larger space at the bottom for a power amp, all shelves are 3/4-inch MDF and are spike-decoupled, and the price is only around $500.

2) The Polycrystal has anti-resonant shelves, and has adjustable spacing between shelves. It has been very well reviewed, and costs a lot more money.

3) The Zoethecus has the anti-resonant z-slab shelves, is superior aesthetically to the Polycrystal, and is even more expensive. I would need to special-order it, unless I could find one with a larger space at the bottom on Audiogon.

I believe that my system (Denon 1650AR/Bryston BP-20/Aragon 8008BB/Thiel 3.6/Pro-SilwayII/Oval9) is good enough that I would hear any significant sonic differences between the racks.

Which of these racks would be the better choice, i.e., would there be enough of an improvement over the Atlantis Reference to justify the higher cost?

Thanks for your input.

Alan