As far as which wiring method is better, is a moot question. For it is not the method that is so important as the skill (and pride) of the installer.
I have seen all different kinds of wiring methods that show great skill and pride, and I have also seen disasters including all different wiring methods.
Both wiring methods have their place, and both are very safe if installed properly.
As far as building types, in most states the type of building construction is supposed to be labeled on the print. If there are no prints, or they are not labeled, then the building department has that jurisdiction.
Pierre
