Heard the same cables. It's not a matter of preference, it is a matter of synergy. These would all be considered "premium" plugs, but the nature of their sound is noticeably different from one another.
Rhodium - I call this the new "loudness" button, because it tends to emphasize the top and bottom ends, slightly recessing the mids. Bottom is tight and punchy. Top could possibly be a bit too forward in the wrong system. But if your system leans more toward an overall roundness or plumminess this might be just the ticket to bring it into a more modern sound. The perfect plug for a sub IMO.
Silver - This is a detail and air monster, but not with any loss of texture. In fact even more texture than a standard copper plug. Very even presentation top to bottom. However, this is not your standard silver coated copper plug, it is a full silver tong, and as such is very soft (and pricy). I loved the sound of this on digital.
Rose Copper/Gold/Silver - This is very similar to the standard copper plug, but just more of everything, in a good way. I can't find any fault with this plug at all. It just draws you in and makes everything ahhhhhhh.
Of course, YMMV, and as I said, it's all about the synergy with different components> The choice of which one to use where is really about what you might believe the shortcomings of a particular component might be.
Does that mean these are tone controls? Yeah, maybe. I think of them more as tuning devices to bring the best out of a particular component. But one size definitely does not fit all.
Don't get me wrong. These are all "premium" plugs on a premium cable, and each improves on the stock copper connector, but in different ways. What is surprising is that each is "top shelf" and "SOTA" and each just sounds different from the other in meaningful ways.