Black Mamba CX or PS Audio AC12

This is for the non-HC version, I'm unsure of the construction of the Black Mamba and I'm torn between the AC12.

I've never used either, I have a few AC5's with no regrets. The price of each I can get them for is roughly $440, the AC12 being about $30 more.

 Is either of them a superior cable to each other? I would assume the AC12 would be a better choice but not sure.

Thanks.