I have all of the scores from each movie and I will say this:
Batman 89 was amazing. Every time I hear each score I can picture the scene in my head as well as do the dialogue with it. Danny Elfman outdid himself there.
Batman Returns is actualy ten times better than the original. I blare the opening sequence in my car when I listen to it all the time. Each theme for each character is very obvious with the waddle of the penguin's horn section to the screeching strings for Catwoman.
Batman Forever and B&R: Forever was okay but it isn't Elfman. B&R used the same exact score but it was slower (I dont think they even released a score CD for B&R).
Batman Begins is not really good. There were times that I was waiting for a big themed moment in the film and it never came. Zimmer said that Batman needed to earn the theme and that was why it wasnt in it. I had many moments in the car listening to the CD and had to turn up the volume because the score was so soft I couldn't hear it. I hear a definate theme in the first teaser and I hope it is more prevailant in the Dark Knight.
So my grades are:
B89: A
BR: A+
BF: C
B&R: F
BB: C-
IMO of course.
t:
