We keep going round in circles on this. 
We're emigrating to NZ in March (well, I'm returning home; my British-born family are emigrating). After all the stress of selling our house and packing up our life here, we want a nice stop over somewhere on the way there.
At first we considered somewhere in Asia - Hong Kong or Singapore - but we're not sure how child friendly such places would be as a holiday destination - getting around, etc. DCs will be just 2 years and 7 months.
Then we considered Hawaii, but would have to fly back to LA in order to fly to Auckland, so defeats the purpose of a stop-over. Then considered San Francisco, but it's not really somewhere to go and enjoy with young children.
So then - Dubai maybe? Might be easy just to relax in a hotel which has everything at our finger tips. But we'd probably have to fly to Sydney and then onto Auckland, which just prolongs the agony of long haul with a toddler and baby.
So then we get back to Asia again. 
I really doubt anyone can advise on this, but if anyone does have any experience or thoughts, they'd be more than welcome!!