Our perennial favorite, AAdvantage's earning and redeeming policies make it the best of the Big Three US frequent flyer programs. While a devaluation is in store for 2016, it remains one of the better options for US travelers.
Earn miles based on miles flown
Some of the best partner business and first-class awards in the business
Called SkyPesos for a reason, SkyMiles doesn't make it easy to get good value from your points, plus its revenue-based mile-earning system makes it all but impossible for casual flyers to accrue useful a useful for the program.
Miles don't expire
Many partner airlines to choose from—if you're willing to pay up
Extremely limited saver-level inventory
Hard to earn miles in revenue-based redeemable-miles earning system