As most have said, cables are going to be different in everyone's system. Nordost good stuff really does start at the Heimdall and above. Audioquest PC start at Thunder and above.
For my system, I had Nordost Red dawn and Blue Heaven for all of my components. I made a single upgrade on my amp to an Audioquest Tornado HC PC. After that, I upgraded most of my components to Audioquest Tornado's, they just sounded better. To be fair, the Audioquest cables were 2x the price of the Nordost cables I had.