They seem too fixed overall and soo predictable.
They always build one ship assembly area max per planet. It usually ends up being their demise by mid-end game. I am looking at the game froma economics standpoint in game. Usually the computer has a crap ton of resources saved by then and well... cant do crap with it even over 2 hours of rebuilding due to having such low production depots.
I think a option should be put in the game to disable culture and its buildings etc(instead of slow, normal and fast add in NONE also...). Sadly this will hurt certain balances but maybe with it a disable super weapons can be picked. I find it quite annoying to have to be fighting culture constantly on front line colonies instead of being able to produce ships or gather resources. And having the need to keep my captial ships there. If I dont usually the colony goes under if I decide to go attack anyone.