I agree that a few of these are definitely better than the book. The Notebook was well done as a movie. Shawshank Redemption is one of my favorite movies. The Princess Bride doesn’t show up on the list, but I couldn’t even finish the book, but I have the movie memorized. Holes followed the book almost to the letter. All of these that I’ve seen are excellent movies. I will put the others on my to watch list.
For the record, Fifty Shades of Grey was so poorly written, they couldn’t have done worse with a movie. Yes, I am biased.