Doctor M said:
I maintain the first two movies are the best and most faithful to the books.
Ditto. But moreover I feel that they’re better films than the rest. Films 4, 5, 7, and 8 are extremely unfocused and are barely understandable without having read the books beforehand.
The first two films remain my favorite in terms of atmosphere, pacing, coloring, editing, and story.
Prisoner of Azkaban is the best Harry Potter film by far.
Philospher’s Stone is the 2nd best best in my opinion.
None of the other ones are very good. As this user mentioned, the later films are nothing more than a barely intelligible series of montages.