I don't think any of those movies (including RotK) broke any new ground, effects-wise.

Maybe next year.

Okay, I took my girls to see Peter Pan today, and while it was a good little film it definitely doesn't deserve to be nominated for visual effects. Not that they were poor, but they were similar to, and perhaps a step below what we saw in What Dreams May Come. Not groundbreaking by any stretch, and the same visual effects style has been done better in several films.