Galactic Conquest/Campaign is 1v1 on a real time basis. Its superb. Most RTS games, you have your overall map and building your units up and sending them to other planets/areas then wait for the next turn. This way, being real time, players are more involved in the action as re-creates the fast pace of Star Wars!
skirmish is going to be my thing, sure i think that Galatic Conquest is the cream filling of the treat, but i still savor that icing on the top, that Skirmish, thats the first thing im playing when i get online tomorrow.