John-
Yes I own both the Hologram and the Satori, and the Hologram is simply better, by a wide margin. I still think the Satori is a great cable, but if you are willing to spend the extra definately go for Hologram.
Do you really think that Nordost SPM is better? I did extensive comparisons between SPM and Satori, and I think Satori is more natural and more realistic in virtually ever regard than SPM. To my ear SPM and Quattro Fil have a very dry sterile sound.
I did quite a bit of cable comparing in my system a few months ago. I even compared AZ to the expensive lines by Nordost, NBS, Siltech, and Silversmith. I thought the AZ cables are the best balanced and most musical in my system.