I loved it.
Didn't mind the issues with Denethor, as it was one of the sacrifices that need to be made when moving a story from book to film.
The army of the dead being moved to Pelennor was also obviously done for reasons of time constraints, however I think that it could have been done better. By making the undead near invincible it drains power from the sacrifices of the other combatants. The undead should have put the "good guys" just over the top rather than acting like a super smart bomb.
Still, considering that this was such a complex endeavor, I think the film representation was admirable.
Um... I loved it.
