used pampers exclusively with ds#1 ... usually bought at watsons (silly and expensive, i know!!) we also stocked up while in Canada. Pampers there (US/CDN) fit FAR better (on my kids)
now with twins at home and in nappies, we buy SEALER (think it's a taiwanese brand). (sorry, pampers just tooo expensive when you're doing it x2!!) Really pleased. no rashes, no leaks. You can get tehm at mannings. on the LESS expensive side ($60-$80 / pk)
other than that we buy at a local pharmacy/dispensery. in the NT we have a big chain called Koon Sang Dispensery and another called BIRDS NEST ... i'm sure they must have similar on the island. ask a neighbor where the best/closest one is.
Also, buy your wipes at the dispenseries too. We get the pampers senstive wipes for HK$16/pk and Johnson's for HK$18/pk. Watons & Mannings are well over HK$22. we also buy over 10 at a time. just make sure to check the expiry on the bottom. did get one that was 2yrs expired and DRY DRY DRY ... but just took it back, showed them and they gave me a new one.