There has never been a weight limit in the HW division. I say a prime Ali or a 21 year old Tyson could beat any of the HWs today and Tyson was only around 220 and Ali around 215. Even a 208 Holyfield (his prime weight) would be able to beat the Klit brothers.

We have to say thank you to the WBC, WBA, IBF, WBO for expanding the weight classes to 17 and having 4 champs per division. That's the problem right there.