Tbh it seems like the world rankings paint a descent picture of top 4, I see very few teams able to live with them, if SA are really up for it I am not convinced anyone can live with their physicality. It's hard to judge Aus as a hole based off that game they were utterly dominated but who knows if EJ is holding back a thing or two (struggling to see them coming close to winning it but confident they will be better then that game), as for Argentina they are a bit like Scotland capable of being brilliant one off games but maintaining it throughout a tournament is unlikely.