Fernandez by crushing KO because he fought in B&W. But seriously.... Martinez in all likelyhood would be too fast, and talented for Fernandez. Although Fernandez was a huge puncher, and would have a legit puncher's chance.
Florentino could swat with the best of them and he had a tricky style. But Martinez doesn't just succeed of his blistering speed and unorthodox movement. He also has a very underrated sense of anticipation and he usually sees everything three or four moves before it happens. Martinez by late TKO, call it a hunch.