Based on what valid data are these three bows considered to be the "Big 3?" A few months ago I read an archery business article that stated that Bear was still the leading bow seller.

Just because a bow is in the top seller bracket does not mean that the bow is over-the-top-better than any other bow. Nor does it mean that a so called top seller is the bow for everyone.

All it means is that some bow manufacturers have a good ad coverage, and a lot of people fell for the propaganda.