The AI is no challenge to me when it has just a 25% bonus economy, research and production bonus (genius AI up to crippling). I am no challenge to the AI when it has a 100% bonus to all 3 (incredible AI, masochistic and above). I could switch tech trading on and economy cheese my way to victory, or maybe even leave tech trading off and do the same (pay everybody else to do my dirty work and flip planets instead of invade) but I don't enjoy playing that way. Why the hell is there no sensible middle ground?!
Related topic...how do I go about getting this complaint heard by the people who could actually do something about it? The game is utterly useless to me as it is, and surely I can't be alone in finding this difficulty jump insurmountable. It must be so easy for them to put in an AI level with, say, 50% bonus, so I assume it's just not been brought to their attention.