Originally Posted by silver springer
... I already have a HHonors AMEX for hotel points, a United CC, a Chase WORLD for points toward airline tickets. I wind up using the AMEX abroad due to 2% currency conversion charge.
Watch out for AMEX currency exchange rate.
I don't use Amex aborad personally. However, people are reporting Amex is the worst among all. Even their comparatively low 2% add-on can't justify the bad rate. You might want to re-consider your strategy for international travel expenses.