Flying later this year from Toronto to Sydney, via Hong Kong. First leg is 15 hrs (overnight), second leg is during the day (9 hrs) arriving in Sydney in the early evening. Travelling with (fairly well travelled) 8 and 4 yo.
I can't work out if a stop of two nights in Hong Kong will be worth it, or if it would just mean spending two cranky days in a small hotel room trying to sight-see with overtired/jetlagged kids? Once we get to Sydney we have family to stay with/help with the kids, so more restful once we arrive there...
I am leaning towards 'power through' but wondering if I am committing us to some kind of hell on earth! Total journey time is 28hrs 
Thoughts, suggestions, tips please :)