Originally Posted by
dvs7310
If you go with BA you won't get the . . .
MCE seating, but you'd always have lounge access regardless of itinerary. Your baggage would also go by the OneWorld Emerald policy which is +1 on top of whatever the ticket allows (which is usually zero on domestic economy).
BA Silvers and Golds both get free MCE seats on AA at time of booking, and get at least two free checked bags on AA. AA is more generous than what oneworld rules require.