Whittaker and Henry Armstrong as well would have given Floyd a VERY tough time.

Very true Sweet Pea....but I do believe the guys who had such high work rates could get to Floyd, especially those who can take a punch OR have the defense to avoid a lot of punches would upset PBF's style.

Remember Mayweather-Castillo....a brawler with a high workrate and a good chin really pressed Floyd and compared to Chavez, Castillo is a BUM