Favourite lines ?

Fred/George Weasley, after taking the polyjuice potion to look like Harry, saying "Hey, we look identical !" Nice bit of irony and humour there boys.

Molly Weasley calling Bellatrix a $%^# when she attacked her in defence of Ginny. You go girlfriend...

Fred and George's multiple ear jokes after George lost his ear to the sectumsempra spell.

There's more, but the wife now has the book seeing that I finished it yesterday. I can't pry it out of her fingers to look for favourite quotes, but the above ones do stick out.

Durro