I took the infamous VGC 2015 team picture and rearranged every Pokemon in order of usage.
This is NOT how the teams were originally ordered, but the team compositions are the same.
I did this to make it clearer how centralized VGC is if it wasn't obvious enough.

>Landorus-Therian 8
>Kangaskhan-Mega 6
>Heatran 6
>Amoonguss 6
>Cresselia 5
>Thundurus-Incarnate 4
>Aegislash 3
>Tyranitar 2
>Gardevoir 2
>Volcarona 1
>Sylveon 1
>Rotom-W 1
>Scrafty 1
>Entei 1
>Hydreigon 1

>Landorus-Therian at 100% usage
this is less centralized than VGC 2016