The only reason you don't rate Riboku is because Shin have been the one foilin his plans..No one in the middle Kingdom can come up with the demonic Strategies he comes up with. How many Qin General did he kill and will still kill with strategy...He killed Ou ki, Duke Hyou and commanders too. He never wields a sword just putting one or two together.
Spoiler.......Another Great General of Qin