JWs have a unique interpretation of the seven kings of Revelation. They of course refer to Roman rulers, but the WT believe they represent certain 'world powers'.
The problem with these world powers is how arbitrary they are, not to mention the fact that none of them truly were world powers, in fact none of them even covered the entirety of Europe, and the Anglo-American world power isn't even a distinct entity.
Then there are all of the world powers that are left out for convenience, many of which were far bigger. The Mongolian empire and the Ottoman empire were both bigger than half of the chosen world powers, such as Medo-Persia.
Has anyone ever taken this topic up with JWs? And if so, what sort of responses have you received?