@wesheadley
What sounds best is always going to be subjective to the listener. What sounds best to me, on this system, is Silver.
What I have discovered, after over 30 years of dealing with cables, is that speed and accuracy of the signal is what is important. How fast can the signal get to the speaker and maintain accuracy. Then the system and speaker itself have to relay that accuracy and speed. Let me give you an example. Your cable sends a series of musical notes to your speaker, but the speaker's driver hadn't finished executing the physical movements required for the series of notes that came before it. As a result it cannot properly execute the remaining notes. This in turn creates distortion, lack of accuracy, and loss of detail, and smeared layering. You can solve this with better engineered speakers or better engineered amps and in some cases better engineered cables.
One way I can describe this, is through explaining the evolution of this system. This system used to have smaller powered speakers. They were a class A/B stereo, linear amp. The rectifiers were small as were the caps. So it was easy and quick to fill the capacitors and get the speed and accuracy required to have the drive complete the necessary movements before the next series of notes; especially with the massive power back end I had at the time. However, it was missing rich mid-bass because the physical size of the bass drivers were too small. So I upgraded to larger powered speakers. This time they are two mono class A/B linear amps and require more power. I wrongfully assumed the overpowered back end I had would be more than enough. I was wrong. It couldn't deliver the same incredible sound as their smaller versions; though I was getting better mid bass. I tried rolling the OEM fuse for a Synergistic Purple Fuse. This didn't solve the problem, but did give me better holography and imaging. Then I upgraded the main sound cable from Synergistic Foundation to Synergistic Atmosphere Lv1. This created more clarity, but it still wasn't at the same level of realism as the previous setup. Then I upgraded the mains power cable from Shunyata Research's Delta to Alpha. That did the trick. The Alpha power cable was more robust and was more than capable of keeping the rectifier open and filling the capacitor so quickly, the system never had any delay in power draw. It could also burst with more power and empty of power much faster and rapidly than the previous power cable. This allowed the speaker's drivers to quickly commit to full movement and be back at the ready for the next series of notes, eliminating any flabbiness. Then I added some DIY Earth ground boxes to the speakers that finally created the sound I was enjoying before on the smaller system. Throughout the life of this system, there were a few songs here and there that didn't sound as good as I have heard them on better systems. Like Chuck Magione's "Feels So Good." On better systems, I have heard the acoustic guitar in the opening more clearly, loudly and with an echo. I was unable to achieve that on this system; at this time. On this configuration of the system, the acoustic guitar sounded distant and its attack and decay of the echo was being cut off. I chalked it up to the limitations of the speakers or the DAC. But that wasn't true.
I won't go into detail on why I decided to move away from Synergistic Research cables; that is a whole other thread I posted. Needless to say, I was suggested Lavricables on that thread and I bought a pair for my headphones. The details this cable revealed were far more than I would have expected. Those details weren't present on my system. So I had the idea of getting the same level of cable for this system to see if those details would emerge. They did and then some. Now, the acoustic guitar on "Feels So Good" is louder, clearer, more up front and has the attack and decay echo I remembered hearing from "better" systems.
I have heard reviews talk about "cold" or "warm" sounds from Silver and Copper respectively. The Lavricable, though made of silver, transcended that description. It doesn't sound "cold" or "warm." It just sounds correct; more realistic, more detailed. That's the sound profile that best fits this system.