no aa on 1080p for me, i literally don't see any difference between 2x, 4x or 8x, they all look the same to me. 2x and 0 has a very slight noticeable effect but not something i care about, as long as everything else is maxed out i just leave aa off, i leave fxaa on since it has no impact on my fps at all but even with it off i still hardly notice anything