As much as I enjoy the Harry Potter books, I go back and forth on the movies themselves. I mean, sure they have done a good job recreating the settings and characters pretty much the way I had originally imagined them when I read the books, but I just like the books more. I'm sure it helps that they don't have to edit down the books so that I can read them in 3 hours like they have to do for the screenplay.
Of course, invariably I end up seeing the movies anyway, often because they are being shown on a flight I'm on and I figure that beats using up my laptop battery to watch a DVD. Of course now they've started running regular movies on IMAX theaters, where the value proposition is something like: "Everything looks bigger and better in IMAX!"
Including, apparently, Hermione's boobs.