How to A/B Test Power Cables & Interconnects?

I’m not hiding behind anything. I don’t hear differences between interconnects, speaker cables, and most amps. Or rather when I’ve sat down and done *immediate comparisons* the differences aren’t there. In that sense, I’m like....everyone else, apparently.

But I’m just one guy with biases, like you (perhaps even a bias *not* to hear a difference, the opposite of the problem Stereophile ran into). Larger population, properly conducted blind studies are much more compelling evidence than my individual experience, and thus more relevant to the OP.

And it is "ahoFer" (capital for emphasis), but you knew that.

No, a ground loop happens when there is a different voltage potential between two or more grounds.

What I said cleeds. Read it again.

Wouldn't it be a whole lot more honest if people like aholer would just come out and state clearly up front whether or not they are capable of hearing?

Wouldn’t it be *honest* to address the content of someone’s post rather than drag out the hoary old audiophile ad hominem that suggests someone’s hearing is faulty if they don’t hear what you think you hear?

@temporal_dissident; I suggest you do exactly what you stated at the beginning of your post with the five points you listed.

"Is there some more objective way to A/B test power cords and interconnects?"

 Although you will receive a number of different answers I'd say keep life simple and fun and enjoy the music as you make comparisons.

don't waste your time measuring cables it's all about the tone you like. from my experience some cables make a difference that i can hear and some don't. 
to my opinion the center of your quest should be your ears not some noise meter .you are centering on specs or measurements that really mean nothing to us unless we notice it with our ears. with your system it's a crime not to use proper cables and at that level they should be treated like components(they also cost like components). before you change a component you should think about what tonal change would you like?  what are you replacing and why? for example if you want a faster detailed sound or  to open the soundstage and all your rca's and speaker cables are copper maybe silver  cables are for you.how much warmth will you trade for speed?well..that's where the experiments should be .i advise not to spend a cent on ac solutions and power cables unless you hear a noise or problem that it will solve .there are many audiophiles that say that it has a bad effect on tone especially power conditioners.