I agree with this. The MM are not really fleshed out, that's why they appear to be good, but in fact they are just unfinished, unpolished. Most of the MM remain anonymous, generic. We don't know them really. And do the MM help settlements? My impression is more they expect me to help settlements. ( and I don't even need the MM for doing so ) I do most of the work. But that's maybe just because this faction miss some more fleshed out characters. To bad Beth did not make them more interesting
My vote went to BoS and institute. BoS have the firepower and the will to fight all supermutants/raiders/feral ghouls who are obstacles for rebuilding, the institute can be pushed in the right direction with an player director, so the CPG 2.0 may have a chance.