I find that in many systems, Cardas is not the first choice when I wear my audiophile analytical cap. Other cables are sometimes a little faster, more detailed on top, etc.
HOWEVER, when I want to enjoy the music, Cardas usually stomps the others. It seems to have a naturalness that conveys the emotion of a piece more beautifully than other cables.
I think that George Cardas optimizes his designs for overall beauty of reproduction rather than speed and detail.
My preference is usually for Cardas Golden Reference over Cardas Golden Cross, unless I'm dealing with an unusually dry sounding system.
A cable I'm experimenting with lately and find fantastic - unfortunately out of production - are the Empirical Audio (Steve Nugent's stuff). This is not Empirical Design, which I've not heard. The EA are a little more detailed and lean than Cardas but still convey the emotion of the music - wonderful.
Another cable that I think offers a good compromise between detail and musicality are the top of the line Discovery, although the bass is not as deep as Cardas Golden Reference.
I have definitely heard some brands of cable which have all the speed and transparency that you could ever ask for but sound dry as a bone and completely un-involving.
System matching with cable is so important!