No offence, but what the hell are you talking about? Olympic gymnasts have highly aesthetic, well-balanced physiques. As well, it is highly unlikely that Batman would have an underdeveloped chest. The pectorals are used along with the triceps to extend the arms away from the torso push things away, so things like punching and grappling. Yeah, Batman never does those things. As well, your theory completely ignores the aerobic and cardiovascular elements of Batman's career. You know things like running, jumping and scrambling over rooftops. Your physique choices are both largely anaerobic sports, that involve little aerobic and cardiovascular activity. An Olympic lift is over in seconds and a gymnastic routine a few minutes. If you want to debate realism, Batman would look like a cross of an Olympic gymnast, martial artist, and some form of endurance athlete. Not like a cross of two types of strength athletes.