For best I. A. Only F. E. A. R. And Alien isolation.
Alien Isolation has pretty awful AI. This coming from someone who loved the game so much I'd end up speedrunning it for fun. After a while you start to notice that there is an apparent
lack of dynamic AI. Nearly all of it is scripted, and the game itself has an invisible tether connected to you and the alien. So even if you don't alert it to your presence, it will quickly snap back to whatever location you're currently at if you get to far ahead. Amazing game, but I have a genuine chuckle whenever I see someone praise its AI. FEAR on the other hand, I agree. As limited in its interaction as it is, it manages to be quite dynamic in the implementation.