I Suppose he might have a legacy not unlike Barry McGuigan? Beat a long time champion who was probably on the downside. won a couple of inconsequential fights after that.

Top 5 LWW? Nah maybe top 10 though. Aside from all those who fought at LWW who would have kicked his ass (IMO of course), one should also consider those who leapfrogged from lightweight directly to welterweight as comparisons. Such as Mosely and Duran, among others. Otherwise a top all time LWW ranking really doesn't mean squat.