Corvettes are completely useless against any titan with an area of attack ability, that may be intentional though.

All the AI's I have played exclusively build capital ships, even when they have plenty of resources and high fleet supply, they will build their capital ships up to the limit and just stop. 
When donating resources, your relation with the receiving faction keeps going up, even after you run out of the resource. If you have 0 credits, and click donate 100 credits, your relations will boost up, even though they aren't receiving anything.

Other than that.. not bad.