How does Moore perform against these 2 and is he capable of the win? I read that Moore tried to get a fight with Walcott sometime in 1951 but it fell thru.
Louis would stop him brutally in 8. Walcott could go either way, depending more on Jersey rather than Archie. He could allow Moore to get in front in the fight and never catch up. Or if he's the other way out, he'll put in a masterclass and nail Archie time and time again, eventually stopping him.
I think Louis would stop Moore eventually. Though with his style, he could force Louis to have to work for the win, particularly if we're talking about the pre Marciano Archie Moore. But a prime Louis quick hands would find Moore with crisp, bone snapping combinations and put him away. I'd pick a well, trained focused Walcott to outpoint Moore or stop him. Both had similar levels of skill, but Walcott fought better at heavyweight. If Walcott could drain down to light heavyweight and fight Moore, I'd pick Moore to beat him.
Archie loses both, probably badly. One of the more curious stats on the old mongoose was the number of times he was knocked down, estimated to be 50 times in his career! Looking at his record on Wikipedia seems to confirm it.
Joe Louis was hurt badly and losing to 160 pound Billy Conn. Joe Louis has a worse chin than Amir Khan. If Moore can catch him then he puts him out. But 9 times out to 10 Joe Louis knocks out Moore because Joe Louis is bigger and Archie Moore had a Wladmir Klistchko chin.