which powercord? jps,esp,shunyata....?

Well team BMI is out in great force, and I don't doubt that they make a great product. However put me down as Absolute
power cord believer, for the price of one BMI Whale I can outfit 2 entire systems with APCs, something to consider if price has any bearing. I agree fully with Marcel and Banksfriend.

As stated above you must try several AC cords in your own system to see what you like, Cable Co is handy for this.
If I were to try some new AC cables Acoustic Zen Tsunami would at the top of my list, very reasonable price also.

What about Cardas power cords ?

Better than BMI Whales, EELs??

I had Cardas Golden power cords a few years ago. I bought them used and couldn't wait to resell them. The Cardas Golden colored the music and lacked soundstage. I recently bought some Whales and all I can say is WOW. The vocals were more natural and cleaned up. Pinpoint accuracy in detail. And the best extended bass I ever heard in resulting with the Whale. The Whales in my system brought a lot of life out my equipment and neutral tonal balance. Don't just take my word read the forum search under BMI or Whale.