Hi,

Recently flew on this, and I would say 2A would be a better choice since it is further away from the galley and the crew rest entrance. But basically any seats on the A-side or K/J-side is fine, if you want faster meal/service, than starting from the front is the best.
But I guess it all depends if it is a day or night flight or if you are a light or ok sleeper.

Cheers!