Dracula aside for the moment, I have noticed some distinct differences between some PAL and NTSC Superbits. Some Superbit NTSC/PAL movies look exactly alike, but some like "Lawrence of Arabia" and "Fifth Element" seem to have been done at a later date and have improved color grading AND better perceived resolution. Just to clarify, this isnt just a PAL-NTSC difference, but different transfer and compression used for the two releases.
I have not compared the different Superbit releases of Dracula, but I do own the PAL Superbit.
I will dig out my copy over the next week and get PAL screendumps of these shots.