Flexible conversion of points to real miles on many airlines, with no threshholds.

Equivalent of more than one mile per dollar spent.

No rip off 3% currency conversion fee. (No fee would be nice.)

Visa or Mastercard, so all merchants accepting credit cards will accept it.

No annual fee.

25 day grace period, or more.

0% teaser interest rate on purchases and balance transfers, with no fee for balance transfers.

Execellent, well trained customer service delivered by reps who are empowered to do what is needed to deal with my needs and are part of my American culture. (I.e., I can expect them to know the difference between Starwood and Starbucks.)