I just dont go for the TYSON in 88 was unstoppable , yes he ripped through the HW's but he was beatable , he just fought poor fighters , when Tyson faced better fighters who fought back he lost via KO , he was not unbeatable.
Lets also not forget Tyson was a very small HW , he never faced anyone who was the size of Vitali , Smith was 16 stone 4 , i loved watching Tyson in his prime but he was over rated.