I would say the Ring belt has more legitmacy in the eyes of the fans and boxing media, but winning it is no guarantee of good things for the fighter. Joel Casamoyer can claim to be the world champ because he has the Ring belt at lightweight, but it hasn't translated into fights and big purses for him. If he had not been stripped of his ABC title, he at least would have had a mandatory or two since he beat Corrales. The best case scenario for a boxer would be too have one of the ABC belts along with the Ring belt.