SP AI definitely still questionable.

[Archonsod]

Gandalf Parker said:
The problem seems to be that if most of ArmyA is wiped out in the first couple of provinces, its still ArmyA. And that army gets sent out over and over until its gone.

Its the disband or refill code that seems to be lacking. Im not sure how often it checks its armies trength or rebuilds them.

I'm not so sure it's a problem. I've noticed the AI tends to move several armies into a position to attack the same province. While the small army attack isn't going to win, it can put you in trouble if you can't replace the troops it killed before the larger armies attack.
I've seen the AI use attrition type tactics against my better defended provinces a few times. I was quite impressed actually - the province it was attacking was essential to my supply lines to the South, and it repeatedly hit it over four turns. I had no castle nearby, so it ended up grinding down my numbers before launching a huge army into the province, well before relief could arrive.

[Teraswaerto]

Archonsod said:

I'm not so sure it's a problem. I've noticed the AI tends to move several armies into a position to attack the same province. While the small army attack isn't going to win, it can put you in trouble if you can't replace the troops it killed before the larger armies attack.

That may be, but sending the prophet or pretender with a small army on what's essentially a suicide mission is what I'd call a problem.

[Archonsod]

Depends on the pretender I guess. If they're immortal and your in their dominion, it makes perfect sense.
Besides, I've used my pretender on suicide missions myself, especially if they can cast some nasty spells. If your in a last ditch defensive situation, using your pretender as a nuke can sometimes be useful. I dunno, the pretender as a whole is far less important in Doms 3. In fact, each time I've set an awakening option I've had nothing for the pretender to do by the time they arrive.

[Teraswaerto]

Sure, in some cases it can be a good idea to let your pretender be killed (not so much with the prophet though), but I doubt the AI behaviour is limited to those cases.

[Archonsod]

I don't know, I've only managed a few games so far. I haven't seen the AI attack with it's pretender when it wasn't on the ropes though, I've also noticed a few more inanimate pretenders being taken by the AI.

[moodgiesanta]

I think it is vastly improved, since I lost maybe two games of Dom 2 in all the time I played it (I only play SP) but have lost 3 of 4 games so far with Dominions 3.

The biggest problem that has been around since I first got Dom 2 is enemy pretenders picking death-3 scales on non-Ermor nations. This is probably the single most frustrating thing about Dominions to me. I hate coming to a new nation and killing its 100 total troops and taking its 5000-person populated capital all due to heavy death scales.