I tend to play on standard continents at emperor. I tend to play for domination victories. How many non-puppet cities do you typically find support a domination victory the best(enough to handle the production necessary but not so many that you're trying to quell rebellions while finishing off the last AI)? How many puppets? What determines when you raze a city? By the time I'm ready to launch an invasion of the second continent should my continent be all my color on the mini map or just splotches of my color and alot of open land?