I am a fan. I have seen it twice now and hope to see it once more before it finishes at the cinemas. We had a choice of seeing 2D (cinema is closer) or 3D. I'm so glad we chose 3D and drove those extra few k's. I have not been so moved and awestruck by a movie since seeing Star Wars IV (now I'm showing my age!!!).
I loved the environmental message. All Lovelock devotees would have appreciated the huge nod to Gaia. I am in awe of the artists that came up with such a heartachingly beautiful world - I admit I cried at times. I did not enjoy the battle scene at all but I suppose not only did it get "bums on seats" it also served to magnify the difference in outlook on life between the Na'vi and the greedy western mindset. It certainly was anti-corporate and anti-military. I'd be happy to watch a "documentary" about the Na'vi - you know, a year in the life of... type of thing, just to see more of the flora and fauna and the connection the Na'vi have with their world.
Anyway, loved it and my movegoing experience from now on will be measured against this so, chances are, I'm in for a lot of disappointment. Having said that, I am looking forward to Alice in Wonderland in 3D.