I am still researching this but it appears the Saison American Express Platinum Business can get you 1.1 JAL miles per 100 yen which is more than anything else out there. 1 point = 2 miles and overseas you get 2 points for ever 100 yen and for normal purchases 1.5 points per 100 yen. Confusing right? Somehow according to many sites (like this http://jal-travel-navi.com/card/saison/) this Amex gets 1.1 miles per 100 yen as apposed to 1 mile per 100 yen but it is worth it? Does anyone actually have this card? http://www.saisoncard.co.jp/lineup/ca142.html Can anyone spread any light on this?