I was ready for the Hobbit trilogy to end by the time I was sitting through the third movie. It was painfully obvious that they took a tiny sliver of story and blew it way out of proportion to make 3 overly long movies just to cash in on that sweet, sweet trilogy money. And they could've easily done that whole story in a movie or maybe two. But.... at their worst they are not as bad as the awful parts of the Star Wars prequels. And even if we're being generous, the awful parts of the Star Wars prequels is about 60% of their total runtime. The are the biggest indictment of the fact that as great of an idea man as George Lucas was, that the success of the original trilogy belongs as much to the likes of Lawrence Kasdan, Leigh Brackett, and Irvine Kirshner as it does Lucas himself. Because as great as Lucas did to create the Star Wars sandbox (even admitting that much of the work was basically cribbing a ton of ideas from stuff most of the general public of the time had never seen nor heard of), the auteur-type control he had over the prequel trilogy did little besides expose his flaws as a director and (especially) a writer.
The Hobbit trilogy is like a bad idea that was well executed.
The Star Wars prequels were more like a great idea that was terribly executed.