Remathilis
Legend
I don't think that overlap would be all that much. Once you get past the iconic four (and that's not a given considering how I've seen people opting to combine all spellcasters into one or give martials skill and combat at the same time) I think you would find all other classes given more or less equal weight. One person's primal spellcasting shapeshifter is another's cleric in animal furs. Which is why I find attempts to condense the list futile; there is no way you'll find anything resembling consensus on what archetypes are class worthy and which aren't.Oh, it's very much an In My Opinion list.
But I expect if everyone made such a list, there would be a fair amount of overlap.