Jose Napoles, Henry Armstrong, are probably two of the highest ranked Welterweights not named Sugar Ray Robinson that I think Leonard would have a good chance of beating.
I too go with the consensus.........so it boils down to who you think is the next best 147 to the two Sugar Rays.
SRR is the best he might possibly beat. I’d favor Robinson but SRL is one of the few I’d give a chance at 147.
On a given night in history SRL could beat any welterweight who ever lived. I would say the one he'd have the most trouble with would be SRR.
The Cuban Hawk would give Leonard a very good battle. I've always had a very high opinion of Gavilan.