I don't think anyone (Besides Ironclad/Stardock people.) will be able to tell you about the AI building starbases. Also I have never seen a Computer player build a superweapon but maby that is because I have neve gon above easy.
Samurye.
ROFL I like your last comment lol
I Have yet to see one myself and I play exclusively on Hard or Unfair, sure they are money hogs and seem to have a bottemless pit of money but they never build super weapons. If they did, you would not be able to live lol. Think about it this way - they slowly get the technology tree filled and cherry pick the techs they want. An unfair TEC AI would mass produce the Nova on some of their new planets but since they like to build defense towers and so forth I doubt they woud have the space.
When u get the game, give the unfair game a chance and see if they do because as of right now, their is nothing any of us know 