Hi all,
I'm taking the family (myself, wife, 5yo and 7yo) to Japan in September in Qantas business class(award seats). Flight out is QF25 (747-400) and flight back is QF62 (A330-300). 
Any tips on best seat selection in these cabins for families? 
I understand that some Qantas 747s have their old First class cabin now configured as Business class cabin - but I can't tell if this is true for QF25.  If true, are these seats best avoided given their age? 
Many thanks in advance for any advice here!