I haven't flown BA international economy in a long time but I just did AA economy CDG-JFK-EZE and back.
AA food is actually decent and fairly substantial, and drinks service is quite generous (e.g., double rations of alcohol for first beverage service CDG-JFK).
It seems the configuration of the AA 772s vary. I got one configuration JFK-EZE and back and another JFK-CDG (CDG-JFK was in a 763). As 2 772 flights were in emergency exit/bulkhead rows, I cannot comment on if there is MRTC.
Seat recline is rather limited. If you go by QF's rather generous recline, you'll be disappointed on AA.