Best Sounding Speaker Cables?

I have found ribbon cables to be a game changer--easily the equivalent of upgrading my speakers, and I already had very decent cables. 

Ribbons are the wire equivalent of springs. They can be done at different levels but the basic technology is so good even inexpensive versions tend to outperform a lot of more expensive stuff that is trying to do it another way. Tekton MTM is another example. As is DBA. In all of these it is a fundamental re-thinking of what everyone else has been doing for so long that yields unusually large performance gains without having to spend a tremendous amount of money.

😂Yes but that is true of everything. Nothing is ever perfect. Everything affects the sound one way or another. So this tells us nothing.

The geometry flaxxer describes is basically the Townshend F1. Max Townshend worked out the optimal conductor spacing from LCR and engineered the design based on that. Plenty of others use a similar closely spaced ribbon geometry. Townshend actually optimized it to be impedance matched with the speakers, eliminating a lot of ringing, which turns out to be a major source of the sound of different designs. F1 doesn't do that, and so has much less of a sound of its own. Not cheap, but outstanding performance.