I think speaker cables have interactions with both the speaker and the amplifier, so it is a mistake to think about the best fit without considering both. The cable can present, along with the speaker a combined resistive or inductive load that your amplifier is not happy with,.or at least is not a great match for. For instance, a tube amp might sound great with one cable, while a SS amp needs another. But it is much more fine-grained than that. What you seek is a great amp>cable>speaker combination.
-docknow