In terms of scale and advanced terrain weight, I though Taos (pre-Kachina) and Alyeska were the closest analogies. A-Basin is another one now. I would have said A-Basin is smaller, but that was before the Beavers expansion which I have not skied yet.And I think A-Basin is bigger and better than famed Portillo
But I agree that people go to Portillo with the mindset that it's larger than it really is. Qualitatively it's still better than the 3 areas out of Santiago IMHO.