Essentially the question speaks for itself. While i'm stuck between the Asus X79 Deluxe, Asus Sabertooth X79 and Asus Rampage IV Black Edition. I'm entirely open to other suggestions, but i'd also just like to know which would be best for my build specifically out of these three choices as well. Essentially as this will be a Editing rig mainly, I want to be able to use the fastest RAM possible. I know that the Sabertooth only supports up to 1866, but if I could go faster, then I want to.