If so, there is a good chance that most of the votes so far cast for 7.x, 9.x and 11.x should really be decreased to 5.x or 7.x.
Personally I see no reason why Atmos channels would be out of scope if your main audio system is an AV one. I think all non-sub channels should be counted, unless the intention is to unfairly skew the data to lower channel counts?
@Rick Sykora Clarification on this would be helpful.
Edit: Many members have posted details about 2 or more systems. Why not allow multiple votes to be cast? If we have to choose which is our primary system, what criteria should be used? Is it the system you spend most time listening to, the one you have invested most in, your favourite or best performing one? It is not currently a well posed question.
A simpler phrasing might be...
For each system that you own - what is the total number of discrete channels used? (Cast one vote per system).
Additional guidance:
Disregard additional subwoofers (only one is required to add the .x suffix). Count each multi-way speaker, whether the crossover is active or passive, as a single discrete channel. Matrixed speakers, such as dual centers for example, are not discrete and so should count as a single channel.