A lot of the Korean stylists from the mid to late 70s to the mid 80s were great at feinting, particularly with the exaggerated left hand. Chan-Hee Park and Jung-Koo Chang come to mind.
Park reamed Canto with his feints in that first fight.Wouldn't have been quite so effective if he wasn't also quicker, but still it was impressive stuff. For a lesser talented fighter i always thought Pat Cowdell used feints very well.He had Sanchez falling for his feints and respecting\ reacting to a right hand that rarely ever came all throughout their fight...despite not having power or much offensive threat other than his educated jab.Short pro prime and not a versatile or physically gifted fighter that would excel against a multitude of styles at world level, but i tend to see him as a hard man to strictly out-finesse at feather unless you have a big speed advantage.
Cowdell would give any of those not great off the front foot hassle IMO. Featherweight Marquez, Hamed (although Naz would bomb him out eventually I'm sure, he was unorthodox and would have Cowdell rereacting to his own twitches)I reckon he'd decision Nonito Donaire assuming that in Cowdell's era he'd have been a featherweight in his prime.
Ali? Do me a favour. It should've been a simple task to counter Norton's jab, because Futch's simple (yet highly effective) instructions to Norton were just to jab whenever Ali jabbed, jab with him. Futch knew Ali couldn't feint or plan or set traps. So Norton was safe from Ali feinting his own jab to set up a right hand counter over Norton's, which would've been just basic straight forward boxing in the 40s/50s, that Ali was incapable of.