Of the heavyweights in history who had the best combinations. I'm looking a speed, angles, accuracy, power, timing, predictability, and effectiveness. I'm thinking about going with Holyfield or Tyson because both of these fighters had such good combinations that were rarely countered, but Joe Louis is also a tempting answer
As far as all the elements of combination punching? Speed, power, countering, angles of attack, unpredictability, and intuitiveness. Look no further than Joseph Louis Barrow.
#1 Joe Louis #2 Mike Tyson #3 Patterson #4 a young Ali, not because of his technical prowess throwing combinations but his blazing hand speed #5 a tie: Holyfield .............: Ezzard Charles
How anyone can even ask that is beyond me...well, maybe Tyson gave Louis a bit of company in terms of planes of movement.