I have Electraglide FatMan K, Genghis Khan and Shunyata Anaconda Vx in my system. David Elrod worked for Electraglide and started his business with this knowledge, his cables are very similar to Electraglide. So I hope that my experiences may be of interest for you.
All are very good cables, great resolution and soundstage, but they are also very different. The Genghis Khan is crystal clear, more dynamic and more precise in it's presentation. The Anaconda is warmer and darker. I tried all Genghis Khan in my system (Wadia 270 - 27ix - Chord SPM 5000 - Watt/Puppy) and it was too cold. I tried two Anacondas for the Wadia's and the sound was to dark and to slow. Best match in my setup is GK for the 270, Anaconda for the 27ix and GK for the Chord.
For your Wadia 861, which is very dynamic, the Anaconda may be the better match, more musical. But for the warm sounding Audio Aero the dynamic GK may be superior.
At power amps the affordable FatMan is great, but if you look for the best the Khan is my first choice.
I may say that in most systems the Khan is the better cable, but it's more a question of system matching. There is no best power cord for every system. Hope that helps.