So two games won. Both times overwhelming them with culture. Anyone who declared war against me sent one or two ships with on transport at planets at most. This was on challenging. Through various aborted games due to bugs i've noticed that the AI can not keep up with my culture. And I'm not even building a lot of culture buildings. Some culture starbases sure, but then why isn't the AI declaring war and blowing them up? So far on the Tough setting the AI is just as bad.

And its not just culture, but bad placement of buildings on planets and creating fleets that are a threat is not happening. The AI is a 'push over.' Too easy. Anyone else experiencing this or not at all?