for me, Affleck is the closest approximation to Bruce Wayne we've gotten on the big screen so far, in terms of looks and stature.
Hmm, I would've said that was George Clooney. I feel he's the only live-action Bruce Wayne whose face has the right square-jawed shape. It's true that Affleck is the tallest live-action Batman, the only one taller than Bruce Wayne's official 6'2" height, but that's hard to see onscreen, and Clooney's 5'11" isn't far off.