In another thread, @Imaculata wrote about his love for the Michael Keaton version of .... BATMAN. So I thought I'd start a thread wherein people can debate their favorite Batmans from film!
Four notes:
1. This is non-animated only, because otherwise Kevin Conroy would win. Kevin Conroy wins everything, forever.
2. This is movie (film) only; this does not include TV versions of Batman, or other appearances by Batman in other media such as video games. And definitely not comics. However, it does include Adam West as he appeared in a film.
3. It has to be a major-ish role in the film, and as Batman. So little Bruce Wayne in the recent Joker movie doesn't count either.
4. You can't say Robert Pattison, because we've only seen a trailer.
I am going to use wikipedia for the list:
en.wikipedia.org
Using the criteria above, we have 12 movies, and 8 actors for Batman:
Lewis Wilson (Batman, 1943)
Robert Lowery (Batman and Robin, 1949)
Adam West (Batman: The Movie, 1966)
Michael Keaton (Batman & Batman Returns, '89-'92)
Val Kilmer (Batman Forever 1995)
George Clooney (Batman & Robin 1997)
Christian Bale (The Nolan Trilogy '05-'12)
Ben Affleck (BvS, Justice League '16-'17)
Not Rated
Lewis Wilson, Robert Lowery.
I am sure that they were great for their time, but trying to compare pre-'50s movie serials to the other movies is .... impossible.
1. Michael Keaton
A lot of the surrounding movies hasn't aged that well, but his role in the two first "real" Batman movies cemented so many archetypes, and he did an amazing job both as Batman and also as Bruce Wayne.
2. Adam West
I mean, it's Adam West.
3. Christian Bale
I love Christian Bale and think he's one of the greatest actors of this generation. I also love the Nolan trilogy. But while he is good, he doesn't make the role IMO.
4. Batfleck
He actually has a very specific take on Batman that I enjoyed and I think it's a shame we never saw him in his own movie. He was much better than the surrounding material.
5. Val Kilmer
This was the beginning of the transition from "Val Kilmer, amazing actor" to "Val Kilmer, terrible person you don't want to work with." Did you remember he was a Batman?
6. George Clooney
He may be the worst Batman, but he has a gorgeous house (okay, villa ... okay, mansion) on Lake Como and I don't.
Four notes:
1. This is non-animated only, because otherwise Kevin Conroy would win. Kevin Conroy wins everything, forever.
2. This is movie (film) only; this does not include TV versions of Batman, or other appearances by Batman in other media such as video games. And definitely not comics. However, it does include Adam West as he appeared in a film.
3. It has to be a major-ish role in the film, and as Batman. So little Bruce Wayne in the recent Joker movie doesn't count either.
4. You can't say Robert Pattison, because we've only seen a trailer.
I am going to use wikipedia for the list:

Batman in film - Wikipedia
Using the criteria above, we have 12 movies, and 8 actors for Batman:
Lewis Wilson (Batman, 1943)
Robert Lowery (Batman and Robin, 1949)
Adam West (Batman: The Movie, 1966)
Michael Keaton (Batman & Batman Returns, '89-'92)
Val Kilmer (Batman Forever 1995)
George Clooney (Batman & Robin 1997)
Christian Bale (The Nolan Trilogy '05-'12)
Ben Affleck (BvS, Justice League '16-'17)
Not Rated
Lewis Wilson, Robert Lowery.
I am sure that they were great for their time, but trying to compare pre-'50s movie serials to the other movies is .... impossible.
1. Michael Keaton
A lot of the surrounding movies hasn't aged that well, but his role in the two first "real" Batman movies cemented so many archetypes, and he did an amazing job both as Batman and also as Bruce Wayne.
2. Adam West
I mean, it's Adam West.
3. Christian Bale
I love Christian Bale and think he's one of the greatest actors of this generation. I also love the Nolan trilogy. But while he is good, he doesn't make the role IMO.
4. Batfleck
He actually has a very specific take on Batman that I enjoyed and I think it's a shame we never saw him in his own movie. He was much better than the surrounding material.
5. Val Kilmer
This was the beginning of the transition from "Val Kilmer, amazing actor" to "Val Kilmer, terrible person you don't want to work with." Did you remember he was a Batman?
6. George Clooney
He may be the worst Batman, but he has a gorgeous house (okay, villa ... okay, mansion) on Lake Como and I don't.