Really enjoyed it. Good flick, fun, obviously great effects and an engaging story, even with the predictable plot, embarrassing eco-spirits and plot holes.
Being so late to see the movie, I could not avoid going in without a few pre-conceived notions. I was afraid the effects would not live up to the high expectations, but they did. Really extraordinary. Science Fiction is about taking you into another world, and Avatar delivered. I also went in expecting a caricatured ham-handed political message, and while Cameron certainly delivered on that score, it did not detract from the experience.
I'd definitely add this to my list of all time favorite Sci-Fi movies, although it would not quite make it into my top 5. Still, I'm sure I'll see it again, but probably not in 3-D - I still find it gimmicky.
-- Sent from my Palm Pre