Best Match/Best Synergy?

Agreed with the post above me. There are a lot of great cable brands out there along with some I don't care for all that much. I can't make an accurate suggestion without knowing more details about the setup, the budget, the goals, and that sort of thing.

@erastof 

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

Audience Cables - the best ones you can afford. I use AU24 all around and they are terrific in my setup. I went from Transparaent to Audience and have been happy with these speaker lines, RCAs and Coax cable for several years.
Just my opinion...