Ordo is clearly superior to trash like Kei Sha and Rin Bu Kun who both lost to shittier generals than Ordo. Ousen is the best general in Qin without a doubt.
Ousen is rated among the top 4 generals in that era of Chinese history.

Strength 93
Leadership 95
Intelligence 85

Rin Bu Kun
Strength 93
Leadership 85
Intelligence 85

Keisha Stats:
Strength 88
Leadership 90
Intelligence 91