I'd go with Reds or Blacks, but as long as both the Backspace, Enter and Shift keys are 2 keys wide I don't care much. Assuming there isn't some bullshit like swapping the Alt key with the Windows key like I have seen on some keyboards. I just need to find a place to test Reds vs Blacks but the only place I can think of is Best Buy and I'm pretty sure they don't have keyboards just laying around.I'm not a big fan of buying and hoping it turns out to be what I want.