Who makes the best copper cables?

Cables are poison to a good system. Plain and simple. I trust my ears not other peoples opinions. While I never went into forums and ridiculed people that thought other wise, I was never a believer in them either. Then I bought and sold hundreds of pieces of equipment trying to get a sound I liked. It was always good but never as good as what I heard in the shops or at shows. Then a friend sent me a usb cable to try and it opened my eyes. Next step was auditioning cables. My mindset what what cables are adding better goodies to the sound. Then I received project v1 to audition and realized that all these other cables, while good, the good qualities they had were merely just imperfections. The v1 opened up a window. No constrictions. However, like I said I’m a cable dork and acknowledge there might still be even better.  I mention all of this because I had a $22k brand new first in the. US esoteric n01xd se and arc ls28se. I thought just going big on my dac would be what I needed. It was nice. But when I got the cabling I sold all of my electronics and went to work on good cabling, conditioning/grounding,  fixing my network. Now, my base is so good that even when I have just my 8 year old denon home theater receiver plugged into my network and streaming qobuz, I have more detail, insight and stability than I ever had with the expensive electronics. In fact aside from the separation of instruments and natural timbres, my system sounds better than pretty much 99% of what I hear at shops and shows. Even a cheap but good cheaper dac and a nice tube pre should be all I need to have a system that I will finally enjoy

Another question is:

What advantage is a 'superior' cable going to have over the ones the recording studios used?

OP, 

Thank you for sharing your journey. Sounds like quite the whirlwind. May I suggest Robert Harley's book: "The Complete Guide to High End Audio" to help put your experience in a framework. I think you'll find it fascinating and educational. 

I don’t need a book. I have been doing this over a decade and have read so much it makes my brain hurt. Half of which is scrolling through forums with 90% bloat from people feeling the need to give their opposing input because they get endorphins rush from simply copying and pasting something else they saw someone else said. They live in an imaginary world where they think people care and then other like minded people stroke their ego. I’m not saying that’s what you are doing, just that I’ve resorted to simply using my ears.