So from the UK where surcharges have been banned for a while, the UK Amex MR earn rate is 1 point per £1 spent (about 0.5 point per $1 AUD). So a lower earn rate than the AU cards, but the conversation rate is 1:1 from UK Amex points to Avios, QFF, Asia Miles, Etihad, Flying Blue, SAS, Virgin...