Stock freebie black rubber power cords are so bad literally everything will be an improvement. Which one you do first hardly matters. For one thing it hardly matters because guess what? You can move it! PC are like everything else bought on the basis of how they sound.
So give yourself some reasonable budget, and use that as a filter. No point reading up on $1500 power cords if your budget for all of them is $500. Be realistic. Realize price is no indication of quality. Your goal should be to look for the value leader at your price level, whatever that may be.
Don't waste time with construction, and for sure don't waste time with "what is the best PC for my preamp/DAC/amp, etc". A power cord is a power cord, they review how they sound because they sound the same wherever.
Cannot emphasize this enough, stock power cords are garbage. I did a demo one time, the guy didn't believe they could make any difference- until he heard the improvement so obviously he noticed while the record was still in the lead-in groove. Yeah. The instant the needle touched down. That freaking obvious.
So budget, read reviews, then buy.
Now, about those factory fuses....
