I think you really pinged it about the kids and their acting styles. And yes to Watson and Radcliffe - they have really great chemistry together. Reading the books I always liked the Harry/Hermione pairing more than the Ron/Hermione one - even though it was fairly clear from the beginning that there was no chance of it happening...but in the films, it feels more possible, or less unlikely...which I think is because the actors work so well together.

(Also YES to the Burrow burning scene. I don't get it!)