Pac pretty much dominates what most people think of when it comes to Asian boxing (except for Inoue). And make no mistake, Pac is the GOAT Asian boxer... by a considerable margin. But a few other Asian greats/very goods I can think of: Fighting Harada Jung Koo Chang Khaosai Galaxy Myung-Woo Yuh Yoko Gushiken Sung Kil Moon Pone Kingpetch Jiro Watanabe Veeraphol Sahaprom Shozo Shaijo Of all those listed, Harada was probably the best of the bunch, considering he holds two (close) wins over Eder Jofre. Second best would probably be Khaosai Galaxy.
Penalosa definitely. Donaire too, but honestly I was trying to give a shutout to fighters maybe guys don't know a lot about. Everyone knows Donaire.