^ The cunty son did exist in the original movie and the daughter didn't harm 4.0. A part of the McClane family being in trouble or danger has always been part of the series (apart from Vengeance), so I don't really view this as being akin to The Kingdom of the Numb Skulls. Nor do I have any problem with the set-up/ plot for the movie.
My main gripe is with the completely uninspiring choice of ultra-bland director and writer, a typically safe pair of Fox hands. However, if they prove me wrong and give us a truly great Die Hard movie, no-one will be happier to eat his words than yours truly.