Personally, I'd have 1 x parent, 1 x child and the infant in club on the outbound and then the other parent, the other child and the infant again on the inbound but that's just me....

This will be a very divisive topic as there are those out there who don't believe children or infants should be allowed in the 'sanctity' of club and others who believe that parents shouldn't put their kids back in other cabins to be looked after by the crew whilst they 'live it up' towards the pointy end of the plane....

As a parent who travels a lot with my family, I'd just choose the most practical and fairest solution ensuring that the kids always have a parent with them and the 'lap infant' is in the seat with the most personal space.

Regardless, have a great trip!

CB