Will be flying Seattle to Seoul in economy class on Asiana in second week of January with my wife and 18 month old child (infant in own seat).

I believe the airline will provide a car seat for the child if I request it.

The seat configuration on this Airbus A330-300 is 2-4-2.

For seat selection, would you choose:

1. Two seats on the side/window for wife and baby, then my seat right across the aisle (36ACD) (there is no B)
2. Three seats together in the 4 seat middle section of plane (36DEF), risking that someone sits in G and then my wife or I are stuck sitting in a middle seat next to a stranger for 12 hours
3. Three seats in the 4 seat middle section of plane, but stagger so we take the two aisle seats, something like 36DEG, leaving middle F seat open, thinking it's unlikely the airline assigns that unless plane is full, and if they do assign it, I can just switch with that passenger and give them our second aisle seat, so we'd be in same situation as option 2, above.

I have tentatively chosen option 1, 36ACD, thinking that if the kid is in a car seat then we don't really need to aim for "spreading out" over four seats and that it's imperative for my own mental health to at least have an aisle seat. If my wife doesn't like this, we can switch off as to who sits next to the kid.

I'm interested in the opinions of others.