Originally Posted by
Gerbs
BA levels depend on 'tier points' rather than miles, 300 for bronze and 600 for silver. A single TATL round trip in J including a connection in London will get you bronze, 2 will get you silver in BA but will most likely leave you short of the respective AA tiers. More simply, BA status is easier to reach for the long-haul premium cabin traveler.
I already booked two roundtrips on Iberia, on discounted fares, meaning I will only get 150 TP for them, compared to full 15k miles for AA.
Im unfortunately not a premium cabin traveler, mostly have to go for the cheapest tickets, which is why I guess AA could be advantagous.