Sad to say that I play like my 8 year old would. Alex just ticked me off by razing one of my cities and I want all his cities now.
Once I tech all other techs that does not require Astro, I will head to Industrialism. Once I learn Astro, all my coastal cities will build navel units and others will build a few other units. Once I have access to Marines and other strong units (paratrooper are prefered), I am going to build them and start taking his coastal cities. I also like bombers/fighters.
As for othere two, I can not say until I send out some explorers. My production is about to go through the roof, so I have no fear of out producing AI.
If one of them build Manhatten project, then all my production will insta switch to nukes. Whip on second turn and repeat once again.
After that I am going to let my cats, WC and other remaining obsolete forces assist in the clean up work. I have never used Nukes and will use only if someone else seem to head that direction. Building MH Project is heading that direction.
As for culture, it is my second favorite VC after space, but I am not feeling very peaceful at the moment. Darn Alex.