Although, I don't know near as much about this stuff as some of our other members, your rig sounds pretty nice. Plenty of RAM and dual monitors, I like. What HDD are running?
In my mind there would be 2 things that would bring your rating down, and that would be the AMD bulldozer chip and the nvidea based GPU.
From the numbers I have seen, the bulldozer falls well short of its expectations and those of its intel counterpart in most performance areas. And the nvidea is just a personal preference as I favor radeon it, as I have read of fewer overall issues and have had great luck with mine.