Kevin Conroy isn't on the list but he's the one I'd go with. It's his voice that I hear when I read Batman comics so for me he's the definitive Batman.
For sure. Given that the thread doesn't specify live action, I was disappointed Kevin Conroy wasn't on this list. His Batman is just absolutely iconic. Out of the choices here, I vote Keaton for both (and would vote Keaton for Bruce Wayne even if Conroy was there for Batman).