Who is the Greatest?
The top seven are decent picks. After that the list has a HUGE heavyweight bias and is a bit of a mess.
If you are going to rank who is the best fighter ever in each weight class, then Lennox Lewis has to be the #1 heavyweight. I'm not a huge fan of his, but he would have taken Ali apart with his jab if they both met in their primes. Lewis is 6'7" tall and about 240 lbs. If they were both the same size, then I'd take Ali every time, but I think the size difference would have been too much for Ali to overcome.
Re: Who is the Greatest?
george foreman would have walked threw lewis jab and blasted his glass jaw . lewis would have lasted with some of the hwts from the early years