Seven Times Hermione Granger Took Ron Weasley’s Lines in the Movies
Harry needs both Ron and Hermione in his life; together, Ron and Hermione generously provide all the elements that Harry needs to be a fully functioning, more-than-adequately happy human being. By ripping the dialogue out of book-Ron’s mouth and shoving them into movie-Hermione’s does nothing except satisfy Harry/Hermione shippers and destroy any character building on Ron’s part.