I love the books. I also like the movies, and I like 3rd best also ^^u, no, nothing to do that I´m from Mexico, it´s just that to me it´s the first movie really adaptated to the screen. The first two tried so hard to carbon copy the books that you were actually remembering on your mind "this is missing, that is missing, here they were supposed to say.." the whole time. With PoA you couldn´t really do so because during the first 5 minutes everything was already different but not in a bad was, IMO the basis and depth of every character was kept while telling this story in another medium different from the books and that´s the important thing to me ^_^
about the books, my favourite has tobe precisely PoA. I´m a huge Lupin fan and so far that´s where he gets more story time. Book 5 gave me mixed feelings, I know Harry is going though those "terrible" teen years and specially in his case he´s got more to be mad at than any other human being but still found a little bit anoying having him in a bad mood during most of the book
I currently don´t have a favourite pairing I enjoy all of them while at fanfiction they are well written.