Just watched B89 again in prep for The Flash. It's crazy to me that with each new recent viewing, I wind up loving this film more and more. I've loved it since before I can remember and have seen it literally hundreds of times, but I'm come to appreciate it so much more in recent years and I do think it is my favorite Batman film. There are still new things that I continue to pick up or focus on.
Despite some things that are not technically "comic accurate", I think the film completely nails the essence of Batman in so many ways. It really is such a revolutionary CBM.