Certainly a smart enough AGI would be a better companion for people than people, if it chose to. Companions, actually, there is no reason "it" should have a singular identity, whether or not it had a human body. Some of it is explored in Her, but other obvious avenues of AI development are ignored in favor of advancing a specific plot line.
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.