As a long-time Pathfinder player, but new to PFS I found the new factions much more interesting than the old ones. In fact, as I was authoring my 1st PFS toon I was looking at the old factions and trying to find which she might best associated with. Then I read the new Season 6 rules and had to reconsider which faction she'd find herself in.
So, for those of you transitioning a character: a character need not identify with all goals or beliefs of a faction. I find it well within the realm of possibility that one might find themselves more inclined towards a faction based on a singular goal. Hell, it's not wrong to conceive how a character may align themselves with said particular goal and attempts to internally change the remaining viewpoints of the faction to totally align with themselves.