Bug Report: I'm playing on one level below Intelligent (Bright, I think) and the alien civs for the most part (there are some exceptions) aren't using their planets well at all. Many of them having few buildings built and most are highly underutilized (especially these Class 14+ gems that have 2-3 buildings).
This is a pretty important issue because it speaks to the quality of the AI. If the AI can't develop it's worlds properly, then it's going to be easy to take out. Perhaps I should try again on Intelligent, but even at lower difficulty levels, the AI should at least know how to build up its worlds.
I have a screenshot, but I don't have time to host and link to it right now. Needless to say, the screenshot shows what I'm describing.