Xiao Yuanshan's teacher is a Han Chinese. I think that's the ONLY thing we know about that guy. No mention of his martial arts level.
Qiu Qianren's teacher is ELOC contestant Shangguan Jiannan. He was a major Han patriot. Furthermore, I heard that his martial arts was much weaker than Qiu Qianren.
If Shangguan Jiannan and Xiao Yuanshan's nameless teacher were to fight, who would you want to win in your imagination?