Sorry pals, but I've always loved the animated introductions. They're well-made, and give the special features some kind of a special touch.
As for the introductions to the films - I prefer them to appear before the movie, as long as I have the possibility to skip it. It's an introduction, so it should play before the movie. If you've already seen it, one click on the remote control solves your problem.
Just my two cents.