Robinson was obviously at his best at 147, not 160. Still an ATG at 160 but guys act like he's unbeatable at MW when in fact he wasn't. Hopkins would at the very least hold his ground and make it a tough fight.
Also to the poster above that says hopkins wouldn't win around and couldn't survive in robinsons era at 160, gotta disagree entirely. I don't see why Hopkins couldn't hang with the likes of LaMotta, Basilio, Gene Fullmer, Zale, Graziano, etc. etc. etc. A lot of these guys were like 5'6-5'7 Hopkins would have a really big size advantage against most of them not too mention Hopkins style is a problem for just about anyone, especially come forward brawlers who were a dime a dozen in those days.