Originally Posted by guv1976

If you are more concerned with getting good redemption rates than with earning elite status in oneworld, then I would credit the flights to AA. Note that BA does not fly CDG-BCN or BCN-MAN nonstop on its own metal. Are you connecting in LON for those segments, or are you booked on BA codeshares operated by another carrier? Also, note that EI is not presently a oneworld member, although one can earn AA miles and AA Loyalty Points on Aer Lingus flights.