Which faction is stronger, or a template for comparing cities based on their strength!

Heh heh, I used to test it in a similar way! And I always ended up with the strongest RAMPART. Here are a few advantages of the Rampart: it's the most economical castle because hiring all the warriors costs less than the income generated by the castle itself. You can stay in the castle and not leave, and it will sustain itself. In the guild, you can find a City Portal.