Honestly, seeing how all post-processing AA techniques blur the image, some more, some less, but still, and some create weird artifacts like ghosting etc., I'm keen to not use any AA at all. There is some visible shimmering here and there, especially on heavy foliage, but the overall picture is so damn sharp, like, this is EXACTLY what I bought my 4K TV for. Although AA nowadays barely makes a hit on the performance, you lose like 2-3FPS at very worst.