Talking about having a ripped and cut, bulking, 6'2, 220 lb guy in skin tight lycra playing the Bat is that you will end up casting the Rock or somebody similar. You really need to cast Bruce Wayne, the crackpot crimefighter with serious issues that feels the need to dress up in tights and fight crime to avenge the death of his parents over two decades ago. That is a multi faceted, complex character that needs somebody like Michael keaton ( who I think was an excellent brooding Batman/Bruce Wayne) playing him rather than musclebound beefcake dujour.
The problem with the Batman films (aside from Joel directing and Akiva writing) was the too many characters syndrome. Two or three villains per movie, plus stuffing Robin and Batgirl in there eventually was way too much. One villain per film. I'm glad Spidey is doing it the right way.