More skilled; Louis or Tunney?

This is a fascinating topic. So many different areas in the sport to measure a fighter's skill. Louis was the better athlete, bigger, stronger and as fast of hand as Tunney. Tunney was exceptionally fast himself, much better at using his legs and the entire ring. He also knew when to fight and could strike when he wanted to, with real venom behind his right hand. Both accumulated phenomenal records in the sport. Pastor and Levinsky are two fighters, I would say tried to emulate Tunney but neither had the talent or grit of Gene. As for Louis, he had every punch in the book. Truly special.