I like dead orbit mainly for their ideals on expanding. Sure they're leaving earth but it's also better to spread out rather than stay in one place. Even with dead orbit leaving they could act as an early warning group for earth. I don't personally like new monarchy because they want everyone under one ruler that dictates everything. I don't think that much would be gained from that personally. Sure it brings everyone under one banner but usually rebellion comes along with it. Future war cult is more on my good side. They do keep secrets and information but they have golden age technology and are looking out for the city in my opinion. Even if the visions they have are of the city being destroyed. They'll fight till the end.