I go for Ring Worlds and build on that. Mostly out of immediate need to get over the top when playing a higher AI bonus game - to counter attack a nagging, very tough and powerful nearby or leading AI opponent and end its reign outright.
Agreed, I also prefer to build them in a Bi or Tri Star System. Or a nearby cleared anomalistic Systems Nebula, Novian Star, etc.
QB offers good advice: Most AIC Science and Engineering AI races that are allied with you - WILL clear a Nebula, Black Hole etc. and/or build a Star for you. All they need are all the charts to plot a course to that System and the fuel to complete the project
[ July 25, 2004, 01:27: Message edited by: JLS ]