[Baron Munchausen]

The biggest thing you could do for the AI is teach it to use more ships. In my current game it's back to the same old 'stream of single ships' mode that makes stock so frustrating. Every few turns another (colonizer|scout) comes through the warp point and gets instantly slagged by my waiting defense fleet. Even a non-omniscient observer should be able to figure out that it requires more force than a single ship to get through that warp point after a while. The only time I've yet seen the AI mass a fleet together and attack is when I colonized a planet right under its nose -- in its home system.