Probably part nostalgia, but I have always preferred the original Kathy Kane Batwoman. I really enjoyed her return to action in BATMAN FAMILY and her appearance with Barbara Batgirl in the original FREEDOM FIGHTERS series. And I was irritated when she was slaughtered by Bronze Tiger in a story in DETECTIVE COMICS. Didn’t see the sense of that.
Kathy ( and Betty as Bat-Girl) were a lighter side of the Bat family.
Given the chance, I’d create a DC world of my favorite versions of all characters.