[X] Zhao Huan - Martial Adviser + 30
[X] Tan Liu - Intrigue Adviser +30
I'm inclined to say that we should go with the people with the highest stats. In general that means they'll be more effective and better at their jobs. We won't have to worry about our martial adviser betraying us if we have a good enough intrigue adviser to identify them. Likewise, we won't have to worry about assassins as much if we have a great adviser to train our guards, and if our intrigue adviser can set up a decent spy/assassination network to identify and eliminate anyone who might try to assassinate us first.