Re George & Fred's departure, my work environment at the time was not at all pleasant, so it may well have been some sort of envious displacement on my part.......
Agreed on the romantic stuff in Book Six (and not just the Ginny stuff, but Ron's immaturity, and the endless teenage tantrums, outburts of jealousy, etc) but I have to say that I thought the portrayal, in Book Five, of Professor Umbridge's increasing control of the school - by the means of a carefully planned and quite meticulously vicious incremental bureaucratic control and abuse of power, was a very convincing picture of petty & vindictive tyranny and how it can be allowed to develop over time. She was evil, but in a banal way, (Hannah Arendt's classic quote about Adolf Eichmann) like the classic time-serving, career-protecting bureaucrat in a vile dictatorship, rather the the completely deranged ideologically driven evil of someone like Voldemort. As such, to find such a convincing portrayal in a novel - especially with that sort of teenage readership in mind - is very impressive to my mind.
What else did you like about Book Six?
Cheers