Very hard to say, he could drop any from Walcott, Charles and Moore but may not drop any. Pretty sure he beats Louis, Lastarza and Layne.
I like Max as a fighter and he would be a presence and at the top, however he would win a few and drop a few with this crowd. He is capable of beating Walcott, Moore, Ezz, LaStarza, and he is capable to lose to an of them as well. I think the title would switch hands a few times ...with Marciano out of the picture Max would make it interesting but very competitive, experienced era