How would Lyle (as we knew him to be) do in today's heavyweight division? I can see him really putting AJ to the test. He would get outboxed by Usyk. Wilder, before he was washed up, would KO him after a slugfest in which Wilder gets dropped. Fury, firing on all cylinders, stops him late.
He could do well, but I do think he's a little small. 6'3 and 216 wouldn't be too good, so he'd need to pack on some weight. Probably loses to everyone with a good chin or decent enough skill. Funny to think that nowadays he'd even be smaller than Joseph Parker.