ShipBlueprintDefs.xml contains all that data. I have an edited version in my Looks like Galactic Star Trek mod pack in the modding section. It basicly makes the AI build ships like I do, or used too had to change tact a bit after changing it, which I guess was/is the point, I am forever tweaking that file. Its located in the UCP_Combat module of said mod pack.

Its has been restructured and commented with headers for each group (Role mainly) of ships, the default file is a bit jumbled. Works best with the mod as a whole as it augments other changes made (Custom AI with more mass ships, Tech edits etc), does however work as a standalone module. It would not take much editing to adjust for a non moded game, easier to work with too for reasons mentioned  

EDIT:

If you do happen to use the mod as a whole or mostly whole I would suggest for the first playthrough to play at least 1 difficulty under what you normaly play.