Best USB cable +/- $500

I have auditioned 4 USB cables all in the $100 range (Kimber, Audioquest Coffee, Wireworld Starlight, Transparent). Of these I settled on the Transparent in my system as overall best. My system consists of Mac Mini, Lindemann 24/192 DAC, Jeff Rowland Integrated, B&W 802D2 speakers.
What is your recommendation and why? In other words, what are the sonic advantages of your recommendation?

Your insight is appreciated