Mod requests (orders).

As far as I remember, none of these mods support mutual compatibility. You'll have to choose one. I would recommend megaAI because Eternal Essence is based on 3.0 and doesn't support 3.1 features. As for ClassicAI, it's a matter of personal preference.

By the way, there's also an AI mod by RedHeavenHero on the forum, which is also quite good! The AI has learned to cast spells in battles.