Annette, I like your idea of which is the best Batman. Hope you don't mind, but I've pinched it and posted a Poll!
There have been several film Batmans.
Batman and Robin (1949)
black and white serial.
http://uk.imdb.com/Title?0041162
Batman (1966)
The Adam West, Burt Ward campy film with the Joker, the Riddler, Catwoman and the penguin all teamed up together.
http://uk.imdb.com/Title?0060153
Batman (1989)
This the first of the modern BATMAN films is by far the darkest version and in my opinion the best. Burton directs in the style of the dark comic book rather than that of the camp TV series. Keaton is excellent and the best Batman in my opinion. But Jack Nicholson steals every scene as the Joker.
http://uk.imdb.com/Title?0096895
Batman Returns.(1992)
Gotham City faces two criminal menaces; the bizarre Penguin and the slinky, leather clad Catwoman. Can Batman handle two foes at once? Especially when one wants to be Mayor and the other is romantically attracted to Bruce Wayne?
http://uk.imdb.com/Title?0103776
Batman Forever.(1995)
Batman must battle Two-Face and The Riddler with help of an amourous psychologist and a young circus acrobat who becomes his sidekick, Robin.
http://uk.imdb.com/Title?0112462
Batman and Robin.(1997)
The Dark Knight battles his greatest threats yet, Mr Freeze and the venomous Poison Ivy. Batman has more than Gotham City to protect: the youthful eagerness of crimefighting comrades Robin and Batgirl puts them frequently in danger.
http://uk.imdb.com/Title?0118688