This is a great idea for a review, but it sounds like a monumental undertaking. Perhaps this topic would be best split into several categories: 1)Is there a difference, and how large a difference relative to other tweaks (vs. other cable changes, power conditioning, etc); 2)Mid-priced cables (since you're starting with a mid-priced cable, the HT), between say $200-600 or so; 3)Low-priced cables, below $200; 4)High-priced cables.
And yes, indeed, do include the BMI Whale Elite and the Absolute PC- they are the most talked-about PCs on Audiogon. Adding the Synergistic M/C is great choice. And NBS. And the list goes on and on.
The potential for disaster (erroneous choices of winners and losers) is extraordinarily high in this massive a shootout. Please tread carefully.