for those who are interested in USB cable comparisons and understand Portuguese or are willing to use Google Translator here's a link that might interest you: http://www.htforum.com/vb/showthread.php/199786-minha-saga-montando-um-novo-sistema/page3?p=4599395&viewfull=1#post4599395
I compared AQ Coffee, SR Basik Activ, LD Axis and WW Silver Starlight.
If anyone has more specific questions feel free to ask.