Element Cable or Straightwire Symphony spker wire?

I am looking to bi-wire my Von Schweikert VR2s and was wondering if anyone can give me their views on Element Cable's EC Bi-wire or Straightwire's Symphony speaker wire.
I'm using the element cable Twisted Pair speakers cables with the Von Schweikert lcr15 and it's sound wonderful.i had signal cables and tara labs before and the element cables just sound better in my opinion.