I wouldn't say that's prime Lewis myself. He looked at lot more vulnerable at that early stage than he did later. I prefer the later Manny Steward moulded version. Less aggressive, but more effective IMO.
Foreman and Tyson have very different styles. It doesn't really work like that.
To answer the original question, Ali. He's got all the facets to his game that you need to beat Tyson. Great chin, jab, engine, movement, durability. I'd fancy Ali to stop him late on.
May as well close the thread because IMO the VT Boxing authority has spoken.