Depends whether you like to hold hands or otherwise have any physical contact ! The facing seats do not really allow this. The centre seats are more like being in a conventiunal side by side seat with only an armrest between. With the screens up either side, the centre seats have more privacy for a night flight but would probably seem slightly more chlaustrophobic for a day flight.

The worst option is an aisle and middle seat (i.e. D and E) as the person in the middle seat has no privacy from their neighbour in F.

In any event go for D/E or A/B - J/K.

10 is blocked out for pre-allocation for Golds etc. and 15 is the bassinet position. You definitely want to be as far from 15 as possible as there are a lot of kids on this route.