Congregational polity is a system of church governence where each congregation is ecclesiastically autonomous. Many Protestant churches are organized this way and one of its advantages is that it protects the parent organization(s) from legal actions originating at the congregational level. One of it's disadvantages is that a minister in one congregation does not hold that same status in other congregations. The Baptist and Lutheran denominations are congregational
Hierarchical churches organize their congregations as entities subordinate to other entities. This structure usually has the shape of a pyramid with a single entity at the top controlling them all. There are advantages and disadvantages to this system too, and they are pretty much a negative image to those in the congregational system. The Catholic and Presbyterian denominations are hierarchical.
With that in mind, are Jehovah's Witnesses a hierarchical or a congregational church? My understanding has always been that they are congregational, but I could be wrong. I know this can be confusing. A denomination that is structured congregationally in a legal sense can still claim to be hierarchical in a "spiritual sense" and attempt to exercise the advantages of both systems. (Which seems to be the case here.)
What do you think?