ivy,
u paid for the trip oredi? actually depends on your priority, if the trip is plan for your kid/s then i guess good to go somewhere they can enjoy and look forward as well apart fm scenic tour.
I plan to bring mine to GoldCoast when she's older, or Korea. I heard Perth, Farmstay is quite interesting as well. Actually I plan to revisit Japan Tokyo disney again but since this disaster happened, will put on hold for awhile.
Alternatively, you may chk out Club Med at several places, interesting if you havent try out but for 2nd timer it cld be slightly boring.
If u r planing to go beach resort chk out if it is moonsoon period as well.