The original question was OSM or WGM. Singular. Not OSM vs WGMs. If the Olympic medal can go to someone who simply won on one night, can't that be said the same of the World medal?
The point is that for a medal that is contested every year there will be a better feel or representation of the best figure skaters of that era. Sure there can be an upset here or there but not four years straight...right? If two Olympics in a row are flukes....that is nearly a decade worth of OGM's