The Acoustic Zen MC2 has been my current favorite for a few years, the other one I own and like is the Virtual Dynamics Nite. I also owned Kimber Illuminations D60, Cardas Lightning L15, and others from Mapleshade and Stereovox.
I did a direct comparison of five of the six cables not including the Stereovox a few years ago, and in my system I preferred the Acoustic Zen and Virtual Dynamics because in comparison to the other three they created a much larger and more expansive soundfield. The AZ has a touch of warmth, while the Nite sounds slightly cooler. I had the Stereovox when I owned the Ack! dAck! which came with that cable. I only compared it to the AZ, and I felt the Stereovox sounded closest to the D60.
I did a direct comparison of five of the six cables not including the Stereovox a few years ago, and in my system I preferred the Acoustic Zen and Virtual Dynamics because in comparison to the other three they created a much larger and more expansive soundfield. The AZ has a touch of warmth, while the Nite sounds slightly cooler. I had the Stereovox when I owned the Ack! dAck! which came with that cable. I only compared it to the AZ, and I felt the Stereovox sounded closest to the D60.