What good is a poll? It inevitably includes the opinion of a bunch of know-nothings. I much prefer the individual discussions of forum members. Then, a person can evaluate the posters' reasoning and knowledge of history and maybe learn something. What can you learn that is worthwhile from a poll of anonymous participants?
Johnson doesn't have the tools to deal with the offensive machine that was Louis. He was really somewhat of a limited fighter by later standards. Not overly big, not overly dynamic, not a great outside game, but found the means to deal with the crude sorts of his day. Louis beat them big and small, powerful and fast, negative and positive... I don't think this thing is even very close.
I basically agree with your reasoning, but I think you may underestimate Johnson's intellect and resourcefulness. He did have enough ring knowledge to foresee the outcome of the first Louis-Schmeling fight. Maybe it was luck and the product of his own prejudices, but there were virtually no other "experts" who predicted the result. As far as size and strength goes, Johnson was about on a par with Louis. I think Joe would have overpowered Jack, but I am not certain about that outcome. I guess what I am saying is that I favor Louis, but I would not be surprise to be surprised. It sure would go a long way to answer questions about how good the 1910-era fighters were as compared to later era fighters.
Johnson was famous in his day for winning squeakers while trying to look good...."whipping out just enough to win" as Uncle Milty would say. That sort of cavalier attitude would have him on the canvas in a hurry against Louis. And once that hole was dug just a spadeful, I'm not sure he could fill the dirt back in fast enough. Louis is one of the greatest finishers who ever put on the gloves. Not Johnson, not Ken Burns, not all the apologists and publicists of Lil Arthur could fix that fact.
Jack johnson by KO in any round after 10. Not before 10 rounds of some of the most awkward, stop start, action ever seen in history, in which Jack Johnson stays out of fighting distance, paws away Louis' jab, and bear hugs him like he's an autistic kid having a breakdown every time Louis so much as twitches his shoulder to throw a right hand. After 10 rounds of rough and tumble, on an exit from the clinch, Johnson lands a big uppercut and never lets Louis recover.
Well I only quote books, news articles and go from there. Reject the facts if you must. Even you called his title run weak. You one wrote his style makes your **** boil. Sounds rather negative.
Johnson and Dempsey imo suffer from not enough knowledge at the time. today they could compete with adjustments to style. Both were ahead of their times but both had glaring holes that would make their states useless today. Louis on the other hand to this day was one of the fastest best combo throwing HWs ever. His timing and speed and power make him a threat to anyone. Jacks foot work may annoy Louis for a minute but jack would be knocked into a coma the moment he attempts one of those terrible lunge jabs.