I am re-reading the books and finding several things to pick at.
I think J.K.R. did a great disservice to Ron Weasley. From a fine chess player (implying strategic thinking that could have been leveraged in later books), she turned him into an unlikeable jerk, good only for comic relief. However, I do love that scene in the HBP movie, where Ron has eaten the chocolates laced with love potion, especially the part where Harry sits on his bed and Ron sort of flows onto it almost simultaneously; that was beautifully executed.
Rowling's romance writing skills are dreadful (the monster roa