We've been to the Philippines and it has much of what you have described. I'd recommend spending a day or 2 in Manila and then flying out to one of the Islands though. We went to the Ocean park in Manila which was great fun for the kids. They especially liked the Musical fountain show. http://www.manilaoceanpark.com/
There is a theme park there, unfortunately we didn't have enough time to go, but it looked great.
We went to Mindanao, which had quite a bit of touristy things to do, but there is an island which is a resort island, apparently a lot of famous people holiday there as the beaches are awesome. I can't remember the name as I had the site saved on my old computer.
There is a strong US influence there, so there are many shopping centres stocked with US brands