Here are 6 cables I have heard in my system on my amp that you could easily do a shoot out with:
Purist Audio Dominus (Ferrox)
Stealth M5000
Lessloss
Tel Wire
Acoustic Revive
TRL (formerly CRL/FIM) Silver
The pricing varies, most are available used, some are available new with a trial period, all will have their plusses and minuses, and all results will be system dependent.
Since you have stated using this on your amp, I'd suggest a PC capable of delivering high current. Other than that have some fun with it and see what works best for you.
I'm sure others here will give you some ideas on other cables to try and you should easily come up with a list of 5 or so.