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
Fresh off a recent switch to a revenue-based redeemable-miles earning system, MileagePlus is not nearly as generous of a program as it once was. Reasonable economy and business-class saver fares (kind of) make up for it.
No fuel surcharges
Discounted short-haul awards (for US flights <700 miles)
Extremely limited saver-level inventory
Hard to earn miles in revenue-based mileage-earning system