Ratskinner
Adventurer
I was picturing more of a three way tug of war, where the players have to balance gaining power at the expense of other criminals with trying to avoid costumed hero intervention. The latter is probably unavoidable past a certain point. Playing factions of against one another should a key component of survival in what is really a pretty overpopulated Gotham underworld. I wanted the game to start in a state of 'you can have what you are strong or clever enough to take" rather than having a ton of unpopulated spots on the map.
Only hitch I see is some Gotham-y types don't care about having/taking so much as destroying. At least, in some incarnations.