The G7 Emperor Crown and Empress are IMO in a different league to the above mentioned cables. Have been using the KS Elation--and thought them to be quite a major leap from previous Emotion--which is an excellent line too. Currently home demoing the Siltech G7 Prince and King speaker cable. Even Prince--at base of their Royal Signature line with only around 30hrs clocked-in, is already sounding quite superior to my KS Elation. Overall, a more organic (solid/denser) feel to vocal and instrumentation and with just the right amount of harmonic overtones (air) enveloping--more life-like timbre. These, along with their lower noise floor, better placement, and linear tonality made long listening sessions much more enjoyable. I no longer now find myself dissecting and/or technically analyzing capabilities of my new amp, but was instead allowed to simply sit back, immersed, and be drawn into the music as before.
A friend who had compared extensively--favored and bought 3 pairs of Emperor Crown and a few Empress ic's for his tri-amp set-up over the latest Argento MFR and Tara Labs Gold/Zero. However, again, at this level it may become subjective, as well--system dependent.