I have both credit cards, which are coming up for renewal (and payment of the annual fees) and trying to figure out if I should keep both or choose between the two. Even though Citi has more options (MC, Visa and Amex branded AA cards) in my opinion, the US Mastercard wins out in a comparison. Am I missing something or would you agree? But, the real question here is if I have to choose, which bank will win the credit card battle or do you think both will survive?