Which Power Cords: I Need Some Informed Guidance

From what I have researched these powercords seem to be
a very good bang-for-the-buck:

1. Audience Powerchord
2. Shunyata Taipan (If you can stand the putrid lavender ends)
3. Acoustic Zen Tsunami
4. Analysis Plus Power Oval 10

I ordered a Tsunami myself but it hasn't arrived yet.
I'd love to hear if anyone has done a shootout with these
above powercords..

You are 100% correct. Makes a lot of sense..

I have had a hard time "believing" in the power cable has sound qualities argument. With that I just installed a pair of "massive" power cables I won off ebay for $37.00 a piece/plus shipping.
These babies are massive and seem to be well constructed.
They are called "Miova" brand. I plugged them into my Acoustats and I must say I can hear a definite improvement. The already good soundstage has gotten deeper and the whole system seems to be quieter.Which leads me to the question;what am I getting,better current to the speakers(cleaner)or is it all about the shielding which is keeping my interconnects (Prosilways) from interference?

The system seems like it has more headroom which makes me feel like there is more current and or cleaner current.

I am sure that there are folks on here that can explain it so I will sit back and listen.:-)