Fat heavyweights. Let's make it 8 rounds only. They'd do well to last the distance. Who wins ? The Butler who went 5 rounds with Lennox Lewis or the Johnson who went 2 rounds with Vitali Klitschko.
I will go with Lionel Butler. The 260 pound Johnson who faced Vitali should not be favored over anybody.
Kirk was much, much better boxer, better speed, skills and equal power. But 260 lbs Kirk? Well I still pick him but not so sure. Butler hit pretty hard. 225 lbs Kirk easily KOs any version of Lionel Butler though
