Although there were many villains/antagonists in DGSD, probably Murong Fu was the most central one. In ROCH the primary villainous role was that of Jinlun Guoshi/Golden Wheel Monk. One trait that both men have in common is that they kind of ... suck, as far as their combat records go. Murong Fu was repeatedly defeated by people far below his equal-in-reputation Xiao Feng, and he was further embarrassed by Duan Yu several times. Golden Wheel Monk was overcome by Dragon Girl and Yang Guo, and before the 16 years he usually had trouble unleashing his full potential in combat.
So, I ask ye, who is the more pathetic villain in your opinion? One thing we should consider is that Murong Fu actually uses his true ability quite well; it's just that his martial arts aren't very good. While, Golden Wheel Monk's martial arts are very good; it's just that he has trouble unleashing them.