I have two favourites. 1) Better AI system. I mean, this is gonna make post-main quest playing waaaay more fun (and easier to RP, and more immersive, etc. etc.) 2) Better face/body animations and graphics. Now I won't be turning away in horror when I see those giant ugly bugs that seem to be on everybodies faces... wait... I think those WERE their faces! Also, this will allow me to use 3rd person camera angles while walking, without looking like I'm trying to be a runway moddel.