I actually think Francisco adds the most together with Sonnia, because he really shifts her from being a slow and vulnerable master that has a hard time leveraging her damage without being locked in melee into a decently paced fiery kill machine that's not so easy to kill. Hermanos to drag her along is about as auto-include as anything I've found in this game. Other upgrades on him vary with my daily mood and available soulstones. That he then also buffs her Df+Wp makes her that much more able to survive a turn, and then the fantastic bodyguard (not the scheme..) that he is, is almost what makes him the best. Opponents will usually think twice before engaging Sonnia when Francisco is still alive and nearby. When I play Sonnia without Fransisco, she's usually tied in combat by end of turn2 or early turn3, and she's rarely killed much since she has to spend so much AP moving. So I really think he enables her to work as she should. McCabe is really fast enough without Frans and can buff other models to perform as good or better. Justice I'm not that into, but I imagine she'll like the push first turn and then run away from him. Hoffman just likes hits bots, Lucius his minions and Perdita is just fast enough with her own pushes and her Df7 going to 9 doesn't matter as much as you think. That said, he's still a solid model for his points and I don't think he's ever bad, but I don't think he's always the best take.