I most loved how Kevin Conroy's Batman from the Animated Series portrayed this aspect of the character. Conroy did measurably different voices for Batman and Bruce which made it completely clear that Bruce was the false persona being put on for appearances while Batman was the real voice and personality, and also sold how good Batman was at pretending to be Bruce when needed. Conroy's Batman isn't just a ninja genius detective, he's also a good actor, and to portray that as well as he did Conroy had to be an awesome actor.

People liked Batfleck because he was the closest to comic Batman looks-wise. Tall, physically imposing, square jaw, rugged, etc. He was also the best part of the Snyder movies and that’s a low bar. His version was also an older, disillusioned Bruce/Batman which is why he was more prick-ish.

My hot take is that Christian Bales was the worst thing about that Batman trilogy, and I love Christian bale in most things he’s in.

I agree, I think he could have pulled off the same persona written for both Bale and Patterson's batmen. He's also played a lot of assholes, and I'm not sure how much that just develops into a feeling that gets under your skin.