these are my thotz as someone who has been directly exposed to 2022 and 1966 batman within less than a month: there's a sweet spot between silly/gloomy ways to write bruce wayne, there's unpleasant extremes, and then there's the real extremes that are such weird little freaks that they make perfect sense
okay nobody asked but these are my thoughts re: all of the rogues in the '66 Batman series who are just. played by multiple actors and it's never addressed or explained within the show at all.
so the three different Catwomen (Newmar, Meriwether, and queen icon Kitt) are like. they're besties. they're former college roommates, maybe. they're BFFs who are all kind of mean with each other but they're still regularly hanging out and getting brunch and maybe eating each other out a little. mildly toxic but they hype each other up. to it's kind of a Mystery of the Batwoman situation where three women are all just using the same name and same(ish) costume except they're not ever trying to hide it at all.
none of the Mr. Freezes actually know each other; those are completely unrelated men who are using the same name because it's convenient and there aren't actually a TON of good ice-themed names out there when you really think about it. knowing how '66 Batman works they do all probably run into each other at a ray gun enthusiasts' convention or something and it's predictably awkward.
the Riddlers are divorced and they hate each other.
"i've just been working on a... celebrity impression. it's for a sting operation of sorts i've been putting together. yes as a matter of fact it WILL keep me busy tonight—"