LoTR the movies and HP can hardly be compared. The magic in HP was so much better. The fact that HP could destroy Gandalf is hilarious, imo. However, I would say the LOTR was given more money, more time, and the didn't have to worry about the affects of puberty on any of the actors, Except legalos.

Naturally, LOTR was better. HP does put up a good fight, but just not well enough.