[BCLG100]

I disagree to an extent on worker settler production, emporer and above you often need that second city to grab your copper horses so often i go settler at size 2.

Though it has been suggested recently in a few threads at 'the other site' to settle your first few cities primarily for commerce value, even for war mongerers as it means you can pump the science up and take out the AI quickly and easily when you get a tech lead.