I'd transfer the Mariott points and don't forget about the 5k transfer bonus. If you transfer 60k Marriott points, that would equate to 25k AA points so keep that in mind so you don't have to waste too many points. I was in the exact same situation over Thanksgiving and had to transfer 60k to book CDG-DOH-PER with the latter being in F. It's a great flight, make sure to spend some time in the Al Safwa in DOH.