Arnold, Lou, Franco, Fox, Szkalak, Haney, Ruehl, Dennis James, that Russian kid (Sergei something -- you know the one. He has a baby-face), Art Atwood, Johnny Jackson ... maybe even Branch Warren, as almost universally poo-pooed as he is even in the hard-core bodybuilding sites.
I'd also add Shawn Ray to the list as a man with an outstanding side-chest and most-muscular. I might even dare to add Dorian Yates to the list because when he was on, his side chest was freakishly thick from neck to mid-waist with very deep striations running from armpit to sternum.