James Buster Douglas Larry Holmes Roy Jones Vernon Forrest It seems fighters stopped using the feint in the early 90's. Vernon Forrest and Roy Jones used it well after that but not too many post 90.
Yep Duran is a no brainer. Also Charley Burley, Ezzard Charles, Benny Leonard, Jack Johnson, Willie Pep,...
Turpin was pretty good at it as were loads and loads of Oldtime fighters, it was a major part of the craft... Joe Gans.
Archie Moore lauded Charley Burley's skill at feints. Said Charley would feint with every part of his body- head, shoulders, feet, etc. When professor Moore champions someone, I listen. Mike Gibbons was supposedly THE master feinter of his era. Packey McFarland ranked highly too. Roberto Duran is the best of the modern feinters, IMO.
Roy Jones came to mind instantly for me If you want MORE modern fighters, JMM feints well, and so do the Wladamir. Wladamir only does it really with his jab.