If you are not in a hurry, wait to see if they offer a double promotion with British Airways this year. BA miles can be redeemed for AA flights. 50K CR points will get you 25K AA miles, enough for an AA coach award. 50K CR points will get you 50K BA miles (on double transfers), more than what you need for an AA first class award.

BA also has other airline, car and hotel partner redemption options.