Let me ask you a different type of question, or to try a different type of comparison. Find a recording with a very clean ride cymbal being struck. I use Earl Klugh and Bob James "Two of a Kind". The track "Sandstorm" starts off with a ride cymbal and a deep drum being struck one after the other (a little piano noodling in the background too).
If you listen closely to the cymbal with different cables you will see what I mean - on my system with silver the cymbal shimmers and sounds like it is being struck on its edge or in the middle. With copper it sounds more like the nylon tip of the stick is striking the cymbal on the dome where it's screwed onto the stand, producing a rounder sound showing more brass and a better scope of the cymbal's size, with slightly less shimmer to it.
Which is correct? I don't know, but I like the tone of the copper cable better (on this song, in this system, etc.).
Enjoy,
Bob