What is the better UTT RAM for OCing?

I was wondering what RAM is better for OCing, I am getting a DFI lanparty Nf4 SLI-DR, so im planning on using some high voltage RAM, 3.3v. I was wondering which one would be the better, and more overclockable choice.

Mushkin redline:

http://www.newegg.com/product/product.asp?item=N82E16820146392

or OCZ VX gold:

http://www.newegg.com/Product/Product.asp?Item=N82E16820227206

redline