I just finished a battle with two units of Kat, they were not full strength to begin, around 30 each. I had a hard win against a large force, I had to use these tanks to mop up alot. They were both brought down to about 20 each, one being my general Prince. I look at the army after thinking it's ok, I can take from the standard unit and fill out my Prince unit. But no, the AI has already done that but in reverse. Filling out the regular unit and leaving my prince with 3 men. WTF?
I also am getting attacked by Sicily (Byz camp), and the same thing happened after defeating an attacking army. The AI left my general by himself. The AI should prioritze by rank and valor. What it uses now is beyond me.