I reckon Roy would have sh*t himself with gerald stalking him.Not saying he would have won but easily jones's toughest fight around that time.
Almost any 154lb fighter in History - Winky Wright Bernard Hopkins - Joe Calzaghe (Activity being key) Julio Cesar Chavez Sr - Shane Mosley Roy Jones Junior - Nigel Benn (I think Jones wins, but would of had a much harder time with Benn than G-man)
I actually consider prime Hopkins to be an older one. (Not as old as he is now) but an older one. As his body slowed down he adapted brilliantly.