We did a shootout at my house with about 9 powercords.
They ranged from the Shunyata anaconda, to the Synergistiv Research Designers reference to my friends home made WE 10 gauge cable.
The WE costs about $70 to make with Furutech ends, but we have been getting excellent results with the cheap Oyaide clones from China for about $16 on ebay.
In my system the WE cable was by far the best. My friend does a certain type of weave and uses a cable from Home Depot as the ground, I have other WE cables that are not nearly as good as his. He hit upon a very good combo.
Don't buy any expensive WE cables on any website, make your own or have friends make it for you, it is extremely easy to do and the results are great. They sell spools of the WE cable on ebay, find the gauge you like and weave on!
Mike