Power Cable ~ $300 - Which to get? Nordost, Audioquest, Furutech, Shunyata, Zavfino?

I just upgraded to an Audioquest NRG-4 for my amp, which already has made a bit of a difference, however, I am getting a new Audioquest Power bar/conditioner, and wanna connect the entire thing to the wall (will be wired nicely later).

I was told to get the best cable I can get from the power strip to the wall... hence looking for a mid-range power cord, say between $300-400 and not too bulky with some flexiblity... what do you guys recommend? Audioquest Monsoon? Nordost Blue Haven? Furutech, Shunyata in that price range... or Zavfino which is the only one making OCC cable in that price range! Even if a bit higher it's ok, as there are always specials here or there.

Any ideas? Suggestions?