Except for how the Na'Vi fire their bows (which you won't even notice if you aren't into archery), I liked it.

I went with the 3D version. I used to get almost migraine-level headaches from 3D but Avatar only gave me a mild one. I never felt that it was used just for the sake of 3D. It greatly enhanced the "depth" of the imagery, and I quickly stopped noticing it. To the point that I even started to duck a flying object once, but it was completely appropriate to the scene.

The CGI is very, very good. I never felt it was "cartoony", and the characters had enough texture to look more like makeup effects than CGI.

Yeah, the story was predictable, but didn't always go where I expected, which was refreshing.

4 stars out of 5, for me.