Originally Posted by
imagineertobe
This depends on where you're going from London, but given BA's hub in London you shouldn't have any problems finding ways to earn miles in AA's program (especially given the new TATL rules put in place 10/1/10).
Perhaps you should better justify your considerations to leave OW behind for *A, especially living in a OW-dominant city.
Peace.
If you are someone who redeems miles for Y, then with the new rules BA flights are going to be expensive b/c of FS.