At their primes they BOTH were intimidating. But NO ONE- aside from Ali- wanted to fight Foreman. NO ONE. People knew they could lose fighting Tyson, but post-Tucker, people felt as if they could have survived the encounter. Not so with Foreman. It was sudden death. And most of them knew it. Ali was afraid too, but Ali's sheer will put him over the top and his experience with beating Liston gave him that notion that BOXING could beat BRUTE FORCE at any time in the ring.

This is why Ali was and still is THE GREATEST OF ALL TIME!