Mac vs PC. Which is best for music with a Devialet

[Confused]

well i suppose your question begs another before a proper answer can start to be formed.

is your intention to run a basic desktop/tablet/laptop or do you intend to build a customised audio pc?

Personally, I have no intention of building a custom PC.  I'm guessing that the custom PC route is the optimum solution though, well, that and high end dedicated dac-less streamers for lots of cash.