Now with Retribution out and a tech tree change up, I highly recommend the blueprints for AI be updated. Specifically:
1) Medium hulled carriers. Carriers are available quite early, and while it is tempting to use Cargo hulls, it can be quite advantageous to use Medium hulls to ensure their survival in tight battles.
2) Medium hulled transports. Similar to above. Now that Transports need to survive multiple invasions and potentially multiple battles when paired with a fleet, I think it is a good idea to put them into a harder hull.
3) More sensors on Transports.
4) Generally less support modules and more engines.
Just a thought.