It does the reglious warfare thing pretty well...

I have a hard time commenting on vanilla because I am play Lusted's LtC at the moment and AI is doing a pretty good job of making my life hard playing as the Byz.

As I stated in another thread, if only the Battlefield AI was more challenging I would be in serious trouble. But the fact that I can pretty much guarantee winning battles, unless I am very much out numbered, brings any deficiencies in the campaign AI into sharp focus.