Another great faction from Infinity I am considering is the Nomads. The Nomads have a lot going for them in terms of why I would like to play as them, neat models, eclectic mix of unit types, and most importantly, Space Nuns.
This is one of the starter packs, the Bakunin Jurisdictional Command. It comes with three Moderators, basic infantry with combi rifles, a Zero, stealth operative with combi rifle and e/mauler (whatever that is), a Sin Eater Observant, and a Reverend Moira (aforementioned Space Nun). So three bad cops, a ghost, a xenophobic cyborg and a Space Nun. Sounds like my kind of game.