I do have one question about balance -- I just started playing this weekend, so I am probably just not playing very well, but it seems like the computer can always outproduce me and that their population and production grows like crazy, even when I put a significant amount in social development.
Normally, I would just assume that I suck, but it also seems like there is some sort of balance problem between the computer players -- one computer will start crushing its neighbors, and quickly turn into a giant juggernaut no one can stop, "early" in the game (at least, it seems early to me). Often I tend to be the last or second to last in the group to die, but none of the computers seem to be very proactive diplomatically in this release, so they don't ask for help from me or anything like that, they just take their lumps (and die). That is probably something that should be fixed -- I would like to see the AI do what they can to favor the status quo. If someone gets big, they try to ally against them (especially if they are of an opposing alignment and/or growing mostly by conquest), and if someone gets small, they try to protect them (especially if they are of the same alignment). I find that to be the more enjoyable games, when everyone lasts until the endgame.