Hey galvarado, I actually did my own single-blind test with music lovers who were audiophiles. One pair of speaker cable was Mogami soundrunner, and the other I believe was one of the Wireworld Eclipse models.
The interesting thing was. without prompting, we heard the same changes, but the prefernce was markedly different.
Wireworld was darker and had better imaging. Since I paid the most money for it I preferred it! :) My neighbors prefered the brighter, faster sound of the Mogamis.
Tonally we all heard exactly the same thing. My neighbors did not hear the changes in imaging until I asked them to listen for it. They agreed with which imaged better, but really wouldn't give up on the better mid-treble output.
Maybe because of that all my speaker cables now are made from Mogami. :D