One of my favorite comic-book characters is batman, he is the epitome of the human race, he is the smartest and overall strongest human in earth(Maybe Ubu or Bane might stronger under some circunstances with venom or something else).
So in real life, probably the most similar could be Mariusz Pudzianowski, successful entrepreneur and several times world strongest man, his main strength are his muscle, his brains is quite impressive too but all to consider, I don’t believe he is the best combination I could imagine.
My gramps was the person who embodies Batman to me, he was a walking enciclopedia, the must successful entrepreneur I knew and for his advance age when I met him on 94(I met him before but I don’t really recall anything before that year =) ) he was on pretty good shape.