Archie Moore was one tough SOB to read. He would do things that you just don't train to see. Sugar Ray Leonard would often set up shots/traps. JC Chavez could sell the Left hook and crush you with a straight right as good as anyone I have seen They were all very good... But the one that cant be named is No 1.
Walcott qualifies, he showed Charles the right hand all night then kod him with the left! Walcott could feint you with his shoulders!
Joe rolled those gloves at Charles just before that left...as if offering Ezz a choice of which punch he would hit him with...a great move IMO, setting up for that sneaky left hook.
Gee, I still wish that I could mention Duran, if anything, for that Palomino fight, bedevilling Carlos all night with those feints....but I won't say anything about Duran, I promise.
Feints are what helps Marquez be Marquez, he's constantly flicking that lead left hand and shoulder up and down, either luring his opponent to counter him or defend. Surprised Charley Burley hasn't been mentioned, one of the old masters, great feinter. Morales loved to feint the right in the heat of battle.