What makes you think Tyson tried to manhandle on the inside? He rarely even fought on the inside and rested in clinches. His strength was his ability to slip and counter jabs from mid-range where he could cleanly get off his (fast and debilitating) combos to the body and head, utilizing a variety of different angles.
Prime George would kill Vitali too. Come on! George is an ATG. George was an Olympic gold medalist natural fighter. No one ever beat George in a slugfest. Vitali's arm punches wouldnt be enough to stop Foreman.
Joe Louis was big enough to KO the 6'5 250 pound Primo Carnera. Not too small. Lewis hit harder than Vitali and he couldnt KO Evander,Holyfield wins a UD over him. Every fighter Foreman fought was faster and most of them were crushed. Ali has a great chin,great stamina,accuracy and he wins easy UD over Vitali. Frazier scores a TKO over him. Tyson's height does not matter,he beat a guy who was 6'6,260 pounds in round one! Tyson KO's Vitali in 4.