Well, now you're getting into the issue of character development in film v. books. Books will always be more descriptive than film by virtue of length. A good book will take several hours to finish; with a film, three hours is about as much as anyone can take at one sitting, and four is really pushing the limit of most people's attention span.
As far as polling the LOTR nation, they will never be satisfied by any film, because they aren't even satisfied by the book. They're always quoting from Silmarillion or one of Christopher Tolkien's supplements, and unless you put all of that into a film, you don't have a chance of satisfying all of them. Even if you could, I highly doubt you would satisfy most.
And what of the immortal characters, such as Elrond or Sauron? How would you include all of the scenes from their lives? What of the gods, who are only alluded to in LOTR but are prominently featured in Silmarillion? The point is that there must be a line drawn somewhere.
Personally, the only scenes I would have considered would be the Weeping Willow/meeting Tom Bombadil, the campfire with Tom Bombadil's song about himself, Tom Bombadil's decision to stay/the hobbits' departure from the Old Forest, and the Shirriffs. Everything else I consider a nice addition to the book, but it wouldn't have done well on film.