Choysnki's weight is unknown. Johnson s ability is the fools gold currency of the board. His career is full of excuses, but the bald truth is he was knocked cold by a man likely under 170 pounds, floored by a man likely 160 pounds, and according to some primary sources out boxed by a man who scaled by 162.5. If the heavyweight champion of the world had this much trouble vs. middles or super middles, hes curtains when faced with a veteran live body who has skills and can punch over 175 pounds which is why he selected easy marks in a lack luster title right that avoided the best. Johnson's best wins. 168 pound Tommy Burns rates as #1 or #2, all 5'7" of him. #2 is debatable. Maybe his win over a 156 pound young Sam Langford. But I do agree Johnson had an easy time with Ketchel for the most part, as Ketchel lacked skill and was short and light.
A joke who beat Jack Johnson? What evidence do you have from the real physical universe, to suggest that he would have beaten Hart, let alone flattened him?
Hart may be the hardest hitting 160-165lb fighter of all time, next to Bob Fitzsimmons. Look at his knockout percentage, he knocked out hall of famers, top contenders, he twice put Jack o Briens lights out whom went the distance with everyone. Every heavywight ketchel fought, ended up on the floor Hart got knocked out cold by 8-10 wild bill hanrahan yet this turkey is going to take Stanley's best punches? The Johnson decision was highly controversial. I don't believe hart won. It was a robbery.