I think hatred is too harsh of a word. A lot of this mostly has to do with the movie's hype which I do find a little annoying. Why so much excitement over some nice CG? We all know that CG alone doesn't make something worth watching. So yea, I do see Que's point, if he doesn't like CG, he will not like this movie.
On the other hand, Cameron did set out to create a visually rich world and setting, and after seeing the movie, I think he did accomplish that. The movie is very beautiful and the 3D in some parts is really fucking cool. When coming in to see the movie, I knew what I was in for and I was satisfied, it didn't exceed my expectations nor did it fall short of them. There was no original story to be seen like I have heard previously so I wasn't expecting one, so in the end, I was entertained by the CG spectacle. It certainly wasn't a bad story, and like Raisa said, it does have some heart to it, but I would say that something like Pixar has pulled this off far better. I think the best description I've heard someone say is that it's Dances with Wolves meets Fern Gully.
Avatar is what it is, great CG with a competently told story, take it or leave it.