I hope this has not been discussed yet but here it goes!!!
Quite possibly the best fantasy match ever IMO....Two deadly fast and accurate punchers who aren't gonna' do anything but go for the KO due to their styles. Does Dempsey's 'better' chin give him victory by KO or can Louis KO Dempsey before he himself gets KO'd.
I am going with Dempsey due to chin and his better defense. He was harder to hit and was more mobile.