I would play as an economic house, with a large military force as well. I feel it would help you alot to start out as a economic house becuase you would start of with more money (I am assuming this) to build a large military force. I would also be able to afford to hire a mercanary house when i am clearly outmatched by a military house. I would think you would be able to pick the solar system you want to be in when youfirst create a house. Also is there going to be a set Emperor Such the Corrino family in the Novels? Will there be landsraad meetings aswell?