I'm thinking about the NPC's, animals, how everyone react to things, what they do and how their animations are.
I don't know if you've seen how some of the different animals in Far Cry 3 behave, but it's awesome to watch a shark attack you or a tiger.
It's a very different experience, for sure.
Maybe it would be a more thrilling experience to see a wolf biting my arm, not letting go.
How could you fight him off? Well there is magic, shake him off with magic or use your weapon or shield.
I mention this because I want to ask you, do you feel that Skyrim has reached the limit on how well NPCs, both human and animal behave?
Hm, they could had gone bit further to make the world come even more to life.
It's like we got the basic pack, the foundation, what should be expected but I wanted them to blow my mind.

So what would you like to see improved and how could they had improved it in Skyrim?
But they did a good job!