The only thing I didn't really like was the Aragorn's speech after his coronation... he seemed really stiff and awkward. I changed my mind (after seeing it the 2nd time) about his "rally the troops" speech. At first, I didn't think he had done a good job... but, on a second look, I realized he really did deliver...though, compared to Stephen Lang's rally the troops speech in Gods and Generals...Viggo's was pretty lame.
Thought Billy Boyd as Pippin was remarkable. He delivered in spades.
Overall... I will give it the highest of marks.