Blue Jeans Cable Belden 10 gauge. Beautifully finished, practical connectors.
Money no object buy stranded gold. Gold is used in airbag connectors.
Silver tarnishes. Buy it only if you like cleaning it on a regular basis.
I installed a $50 gold plated AC outlet for my system.
I am an alumnus of an automotive technology school in Silicon Valley so my emphasis is on utilitarian durability and continuity. I was a Butler for a billionaire and his system was the same mentality. It's not art on the wall or medieval furniture. It's a cable.