I think Jones jr has damaged his legacy somewhat considerably in recent years and it's alright saying what a great fighter he was 8-10 years ago the fact is he was KTFO by Tarver and soundly beaten another time, KTFO by Glen Johnson and soundly beaten by Calzaghe all in the last 5 years!
Is he an ATG? the answer is yes he is, was he the greatest ever? No he isn't! I don't even think he is the best LHW ever, would he have beaten Bob Foster? I say Bob lands a big one on Roy and it's lights out!
Jones Jr like Oscar drops down a few rungs on the ATG list after some poor performances later in their careers.