I'm also TeamPonytail, first because it was her look on X-Men Evolution which was the first Kitty I ever saw, second cause in the last decade or so I'd say Bendis' Kitty was the best one(at least out of the writers who wrote her regularly), and I associate the Ponytail with that era.
Ponytail is the GOAT of all time because of Evolution and NOW! nostalgia but more importantly gee remember when Kitty was drawn to be her actual age
I don't blind date I make the direct market vibrate
In the NightC variant, who is the flame character?
What is her actual age right now?
So we can compromise and say about 24-26?