B ought Duggan's Mister Freeze issue. I think it embodies why Mister Freeze works best in stories where there is another villain, a more irredeemable villain. When he's in the same story as another villain in the BTAS and Batman Beyond, there is this tragic contrast between Mister Freeze caring only about one person, and the other villain who cares only about himself.
Mister Freeze in such stories comes across as a tragic antihero or antivillain.
When he's completely alone in a story, then he's the villain, and you end up with stuff like this where his nature is twisted into simple selfishness and grotesquery. He no longer feels like Mister Freeze, instead becoming just irredeemable Batman villain number 4567.
Duggan's Freeze is a BWAHAHAH mustache twirler who is happy that his wife is frozen BWAHAHAH because that means she isn't out spending his money or partying BWAHAHAH. He's basically her murderer, robbing her of enjoying her last days so he can have a vegetable that never displeases him, and he's happy about everything working out this way BWAHAHAHAHAH mustache twirl and he never cared about her hopes or desires BWAHAHAHAH.
And then he takes one thing she said to heart which makes zero sense in the face of all the BWAHAHAHing psychopathy he's displayed up until that point. It feels like characterization from a completely unrelated character plunked down into the last few pages. So much so that I can't help but think that there was some narrative short-circuit created by an editor wanting one thing and the writer the other.
I could never imagine this BWAHAHAHing psycho saying something like this:
https://www.youtube.com/watch?v=7EtHfr0eBA4
I was incredibly disappointed. Mister Freeze is my favorite BTAS antagonist. Instead I wasted 8 bucks on a generic BWAHAHAHAH villain.