Interesting subject the grading of images, whether it is relative to the source or absolute. I am an absolutist (sorry) and the best I have seen is the IMAX scenes in The Dark Knight/Rises so it is downhill from there. Incidentally, one of the very best quality transfers I have seen is the blu-ray of Detective Dee: Mystery of the Phantom Flame (Cine Asia). Generally the very best images are obviously from the large format films.
Regarding Mel Brooks, he is a taste I have been unable to acquire!