[-E-]

I usually stick with copper just because of how hot they can run. However, with the tweeter adjustment capability on the Utopia line this becomes less of an issue.

It really depends on the entire chain of gear you are using. I've been impressed with Devialet and Focal with the Crystal lamp cord and alternatively with big hefty monoblocks from Boulder and big ol' fat copper (I'd have to go back to get the specifics on the cable, it was awhile ago).