Holy epic thread derail!
As far as the OP goes, then I have no issues with the HP books/movies. Books are better than the movies, though in all honesty I think the main reason I'm into them is because I grew up as they came out along with the main characters - they each appealed to me at the time, as has happened with many poeple. And if I enjoy a book at one point, I'll likely watch the movie at some other point in the event it comes out.
Whether or not they're pure literary genius, they're entertaining and at least like some books don't subvert huge fantasy tropes to suit their own ends, at least to the extent that, say, Twilight does. Though I can definitely see how the two are comparable... bloody hardcore fans 😛
As an aside, I was actually almost an extra in the new one. They needed people for a crowd scene at night, contacted my 6th form, but eventually called it off and resolved to use CGI because the actors couldn't make it or something. They actually use the cathedral where I live (Durham) for the shooting. Pity, really, I'm guessing that they were going to be doing a certain death scene...