[1.3 BUG - STILL] AI keeps going for the weakest unit first.
In my last game whenever I fought an AI army or sacked an AI city it's units ALWAYS went for the weakest unit or at least made completely senseless decisions on whom to go for.
In one of these occurrances my pale rider squad was having fun leveling the AI's sov while its militia and horsemen hoppeled along in the direction of my stone golem.