Orcas 747 I have used Bocchino audio http://www.bocchtech.com/bocchinoaudio/baxlr.htm - although expensive they are superbly built and you can try different cable toplogies forever with complete ease and use a wide variety of cables and ribbons - I have not really compared them as it is too much trouble - I have achieved good results against very expensive cables but have not swapped XLR's
Cheers
Cheers