the problem is that Jones got hurt once he came down from HW back to LHW way too soon, which left his chin vulnerable. that never really left, he should've stayed at HW or at least lost weight some other way, cuz it was all muscle anyway.
Hearns was badass.. i dont know, just judging from the great fights hearns has been in, i would pick hearns.
If Tarver and Glen Johnston put hurt on Jones. Thomas Hearns punches would have fcked him up bad.
You could aswell turn that around. If the welterweight Leonard hurt Hearns.....
Thomas Hearns is really really great, maybe the best ever at welterweight. His fights with Leonard was great, he should have won the second. Great jab, great power.
I got to go with Jones.