I did have a thought about our land neighbour, especially if its Gandhi.
After teching Aesthetics:
- Settle a crap city, in a 'remote' section of the map, next to a resource (so AI wants it)
- Give it to Gandhi for peace.
- Trade Aesthetics for peace with everyone else, if they take it.
- Trade all of our techs for Gandhis. Aesthetics for Alpha........
- Then trade for all other techs, hopefully IW.
- Then build Axes/Swords and take our neighbours cap, leaving him the crap city.
My best space victories have always come after I have taken my nearest neighbours core cities reasonably early.