The kids probably would want to see out the window... that being said they are both overnight flights so maybe 4/5 e/f is the way to go. otherwise I was thinking like you 4 a,e and 5 a,e. unfortunately no gold so can't go for those front seats though man my boy would love to sit in the front seat and pretend he's the pilot funnily enough i'd rather book in club but this is a oneworld booking and there is more availability in f than j. ideally would just have us all upstairs in j but can't find the room