I'm also in the middle of a USB cable comparison.
My system is quite different than yours, and my preferences / priorities may be different than yours, so who knows....
Here is a rough draft take from my comparison, which is still a work in progress.
"The Purist and Audience are close cousins in performance similarities. Both are a bit fuller, rounder, darker, than the Wireworld. I'd also label both as being slightly more 'traditionally' musical and emotionally engaging than the WW.
On the spectrum, the Audience would sit between the two.
The Purist is mid-range centric and it's strength is voice.
The Audience splits more of the differences between the two and is slightly less than...on the strengths of the Purist...and slightly less than on the strengths of the WW."
(The WW is the 7 Platinum Starlight, which in this first round was the overall winner for my system and needs).
What I can say is, that in my system, I preferred the Audience Au24 SE+ over the Purist Ultimate by a small margin.
Both cables are good and I can see why someone would choose one over the other.
I'm not evaluating the other two cables you list.