Hi there.
I think, the AI-pathfinding needs an improvement, for interplanetary flights as well as intercepting other ships inside gravity wells (e.g. scouts).
First one: When moving a ship, or fleet, from a planets orbit to another planet with a third gravity well on its way, connected in a triangular form, it's not always using the optimal route.
In case I wrote crap and you don't understand, what I mean, here are two screenshots:
This one shows the route, when you are a little bit off the middle to the wrong side:
And here you can see the path, when already being on the right side:
As you can see, my little colonyship has to take a longer trip through the suns gravity well, when not already on the right side. In the other case, it just has to turn itself a few degrees around and take the next jump to its destination. The way through the suns gravity well will definitely take much longer than the slight longer way from the planet to the "right side jump point" than to the "wrong side jump point".
The second issue is the interception path: When an enemy ship jumps to an owned gravity well, your bombers and fighters are about to intercept the vessel. But when they are in range of sight, they notice, that the vessel has moved and they need to chase it. Next not another screenshot, but a work of myself with the help of gimp 
So I'm thinking of a more intelligent interception of hostile vessels, a better movement prediction.
