What is your final destination? Because you could also opt for the JFK-ZRH (Zurich) flight leaving at 6:10 PM and arriving at 7:55 AM (+1).
If the CDG/DUS are the only flights you are considering: AA has wider seats 17.2" vs 17.0" on AB. With regards to entertainment on board, both use an overhead monitor if I am not mistaking. But for the rest, its nearly the same.