I notice the AI pays absolutely no attention to resistances. They will spam your party with poison attacks even if you are all Zombied up and never use heal vs zombie. They will also repeatedly charm/fear my charm/fear immune characters, oblivious to the fact it will never work.
The "move out of cloud" behavior is pretty bad as well. It's easily exploitable by spamming poison cloud arrows wherever they move to, causing them to move even further and take damage with every step.
