I have owned so many power cords through the years, but I’ll keep my comparisons to only the Shunyata and the AudioQuest.
I purchased at a good price a new Sigma NR V2 power cord. At the time I also owned several other Sigma V2 interconnects. It was good but I always thought it was lacking something. During this time, I also purchased a used AudioQuest Hurricane. It sounded different and more powerful than the Shunyata but to my system and ears at the time perhaps a little too boomy.
Then I got a AudioQuest Niagara 7000 power conditioner used and was I really impressed. My belief is that the top-of-the-line power conditioner probably was tested with the Dragon power cord, so I set out to try it with one.
Once I was able to find a used Dragon, it was game over. Instantly I could tell the power of my system. I ended up selling the Shunyata and the Hurricane power cables to help purchase a couple more Dragons to complete the loom.
Now, if I had purchased the Shunyata Everest power conditioner the Shunyata power cords might have proved to be a better fit.
I should note that comparing just the Shunyata Sigma V2, XC power cords to the Dragons straight up from the wall, the Dragons still were way better IMHO.
ozzy