Keaton >>>> Bale
This Batman (1989) is the best Batman film, IMNSHO. And, sacrilegious as some of the DCEU fans will find this statement, I think Nicholson's the best Joker, too.
I will say this about The Dark Knight trilogy, though....those films are in second place to me. Not any of the sequels to the '89 Batman. I loved the first one, hated the rest.