I'm kinda surprised Catwoman's stayed so consistently 5'7", outside Injustice (and doesn't that version wear heels with her costume?). I also find it kind of funny that Talia is consistently taller then her at 5'8".
Somehow I don't think Babs and Kate being the same height has ever been reflected well in their appearances together...though I should probably read that Batgirl annual with their team-up or check out the one team-up from the Simone run and see how the artists depict their height relative to each other.
Black Canary usually seems a lot taller then her official heights would have you believe. I mean, shorter then or as tall as Steph, really
?
It's also weird to think that Helena and Babs would be taller then Dinah.
For what it's worth, the live-action Canaries are 5'9" (Smallville) and 5'7" (Arrow) respectively if we look at the actresses heights.