Which power cords have high resolutions and separation??

Well, that depends on the engineer. I prefer the perspective of Hans M. Strassner, Garth Powell and Caelin Gabriel. 

My answer to the OP would be High Fidelity or Silent Ssource MR. May be able to get in your price point used.

I have all Wireworld Silver Electra 7 cables with reference ends on all my gear, i am very happy with the overall sound. My dealer gave me 3 different Wireworld power cords to try for a week, and i found the one that suited my ears best. 

On my second system, I have a mix match of cables, I have slowly started to replace them so they are all the Same. Find what suits your hearing and room, end of story. 

@clearthinker We are eagerly waiting for the list of "fancy" power cords you ACTUALLY TRIED. It would help tremendously to give credit to your affirmations.

@cleeds   Perhaps I was forgetting the US only has 120V which means double the amps.  Here in UK we don't have much but we do have 230V.

Tell me, which amp manufacturers supply larger than 20SWG for delivery in the US?

@rolox   and what were the results of the blind tests you carried out?

Welcome @timetraveler66  and well said.  I guess you were born in 1966 so got a decent education, as I did.