Agree that you have to read "Wuthering Heights" and "Jane Eyre" when a teenager - reading them as a cynical adult just doesn't have the same effect. And WH has serious structural issues!
Same is true of Tolkien - ideal age to read "The Hobbit" is pretty much as soon as you can read stuff without too many pictures, and "Lord of the Rings" maybe 11-14. That way they stay as cherished books all your life and you don't have to cope with them as a cynical adult, after people have banged on about them enough to put you off for life.