I agree about the luxes and the early commerce. I guess I just don't usually get greedy with starts like that, but getting a start like that definitely seems worth it. If we manage the Republic slingshot, I don't think we'll need the Great Library. With some luck there also, we might just trade for some or all of the first level techs via Republic. We will see. I like the third start the best so far. You have the settings on least aggressive, right?
My thoughts on war: I do like the idea of having more territory for science farms/regular cities. With this sort of game though, the problems as I see it come as
1. Keeping the best AI(s) out of the war. We don't want to slow down our partner's research by having them switch to Fascism or Monarchy or them getting war weariness
2. So, no military alliances. Thus, we'll have to war almost all ourselves against a Deity level AI (even the weak ones will have units).
3. We need to get libraries, markets, and unis. up fast, and later hospitals (once you water and rail everywhere, you can get cities with a lot of improved cities with specialists), so getting out units doesn't come as so easy. Some cities might use courthouses police stations also. An early GA via Greece can help here.
4. We want 0 or really close to 0 war weariness, as that will throw commerce for a run either now or later.
5. We don't want to elimiate anyone as already mentioned... and we have a pangea map. If we have say the Ottos as the best researchers and we pulverize Germany down to 5 cities, then 4, then 3 and so on... does that make the Ottos more likely to join in the war against Germany on their own accord? I'd think so, but I don't know. Again, I don't see how the best AIs warring at all will help us.
6. Of course, if we can't trade for or have native uranium, aluminum, and rubber at the right time, we'll have to war then. But, in such a case we probably won't have a super-fast finish.
5. worries me the most. Maybe I'm just too worried overall, but maybe not.