Originally Posted by
DownUnderFlyer
FT is just great. You learn something new everyday.
In the future this is something to take into consideration when people in this forum ask about which FFP to join. Asiamiles has an advantage over others in this respect.
AA miles cannot be used for upgrades on other airlines, but Asia Miles can and has been for years. So indeed Asia Miles has an advantage over AAdvantage in this respect^. However, the earn/burn ratio for Asia Miles is very poor compared with AA

.
CX also separates the loyalty programme from the mileage programme. The loyalty programme is Marco Polo Club, which costs USD50 to join (with some exceptions). Unlike AAdvantage, MPC members can only advance in status one step at a time, but can lose all status overnight (no soft landing).