Everyone living under a rock and their grandmothers rank Ali and Louis as the top 2 greatest heavyweights (its an over-generalization for effect, don't kill me), usually the #3 spot is the one that causes a divide. This poll is meant as a show-of-hands, seeing who the forum-goers agree on for the #3 spot. If your #3 doesn't show up, rank the highest person on your list that shows in the poll. I've simply put who has the best arguments and most common findings for the third place. Note: THIS IS A GREATNESS RATING, NOT H2H.