Discussion of the Necropolis faction.

There are no archers, just priestesses who shoot and heal, and kappas have high initiative and often go first. These heroes are more convenient for clearing the map at the beginning.

My experience suggests that it's easier to clear neutral creatures at the start with the Stronghold, and even easier with the Necropolis. I tried with the Sanctuary, it's not difficult, but the speed isn't quite right. Maybe I just don't have enough experience...
I have some thoughts on the Inferno page.