lets have look at tyson opponents records when he was champ in 80s + 90s

[Samson3000]

well considering old holmes won 5 rounds against prime holyfield and beat ray mercer id say hes got shot at beating fatty toney and the chinless wonders ruddock was past it when he fought morrison ruddock would beat fat toney and he has got shot landing big bomb on the chinless wonders tyson was still decent against douglas. douglas was good fighter and would beat fat toney im sure of that

Of course every fighter has a 'shot' at landing a big bomb, but that's alittle different than what actually ends up happening. As confident as you are at Douglas beating Toney is as confident as I am that he would lose.