Scans_Daily

Yup, I remember it from a comment on this youtube clip from the last JLU episode, where Batman hold's the hand of the reality warping Ace whilst she's dying; (And oh gods I shouldn't have watched that again, it breaks my heart EVERY SINGLE TIME, even after all these years)

"If you can't imagine your version of Batman comforting a dying child, that's not Batman, that's the Punisher in a funny hat"

Though that poster also admits it's not an original quote, but can't recall the source.