My favorite airline on the transatlantic route. Their business class seats in 1-2-1 configuration are excellent and offer perfect privacy especially on night flights. Airline food is typically nothing to write home about, but AA has made significant progress here. Dining is actually pretty good. I like the option to select my menu already a couple of days ahead of my flight. If nothing would appeal to me, I could dine on the ground in the lounge and skip the inflight meal. However, that never happened to me with AA in the past two to three years.
The planes are always clean and in excellent shape; obviously an advantage of a pretty new fleet, but even the older planes are kept in good condition. The flight attendants are in most cases very good. They are friendly and find the right mix between leaving you on your own and being always present when you need something.
Currently the best way to travel between the US and Europe