Joseph Kosinski's latest is certainly visually stunning and has a nice performance out of Tom Cruise, but Kosinski is not good with pacing (the movie is wildly uneven). The story is very complex, and while at points thoughtful, it is also too complicated and at moments even preposterous.
The Hobbit is another dazzling venture from director Peter Jackson, and features welcome returns from much of the original cast, but drags on for longer than its predecessors, the Lord of the Rings series.
Lengthy, a tad uneven, and not the most original, Avatar is visually impressive, undauntingly presented, and compellingly acted, giving James Cameron another hit.