The easiest AA miles will come from signup bonuses on the Citi AAdvantage cards that both you and your husband can get. Then I would get flexible points cards like the ones that give Chase UR points and the Barclay Arrival points. You can use these points for more than airline tickets. Sit down and plan out a trip and than ask what cards will benefit you most for that trip. You don't want to accumulate points and miles just for the heck of it because they devalue pretty much each year or so. If you don't plan to use the points or miles in the next year and don't have any plans to go anywhere then you might want to go with a cash back card.