AI puts too much emphasis on Land Control using peasants and don't pay nearly enough attention to making cities and scoring points that way... or roads for that matter. You can beat the computer easy if you make the board as spread out as possible and grab as many cities as possible, closed or unclosed.
As a standalone RPG, I get a bit bored of all the travelling and the lack of variation... that said, I'm having the time of my life with my army of ~100 Archers and Shard Hunters who just massacre everything, while I Fear them