Stop with your silly alliance talk already. I know for a fact you never have a set alliance. You just try and make as many as you can during each individual game. There are people you try to include such as roku and myself but you never hold an alliance for multiple games.Actually, I do have two steady people always in the alliance, the others I'm just letting them hitch a ride to victory. The two that are my allies would be Ninja and Maru, but I am planning on a third, and final member. And that's it, others will not be permanent.
That's not the wisest course of action, since chances are high that at least one of them will be Mafia if you aren't, and even higher that they are not Mafia when you are. You should just try to form new alliances every game, fitting the game.