Besides, you lived there long enough to at least be consdered a "semi-local." There's a huge difference between that, and being a tourst there on vacation...
Nubka - Unpaid Slave Laborer...
Waikiki is definitely an experience, it's pretty much the only place in the entire islands that has some semblance of a nightlife (but still nowhere near those of major mainland cities). That and the nearby Ala Moana/Ward centers are pretty much the entertainment center of the island.
There definitely is a part of the populace that holds contempt for tourists, but they're too stupid to recognize that the monarchy and plantation days are over and that Hawai'i really has no resource at the moment that can supplant the level of income that tourism brings in. Same goes for the military bases. They may represent prostitution of the local culture and natural resources, but money talks.
North Shore: Really country, great surf, but getting increasingly touristy minus the urbanization. Still worth a look.
West/Leeward (Ko'olina, Kapolei): Dry area, but REALLY sunny. The only water park on the island is there, and Paradise Cove has the best lu'au feast (and the hottest dancers).
East/Windward (Kailua, Kaneohe): Extremely lush and verdant, beautiful dramatic mountains, but also very rainy. Kualoa Ranch is where a lot of movies and Lost are filmed.
Kahala: Luxury homes, rentals, and resorts. A nice way to stay near town but far from the touristy aspects.
My favorite neighbor island is Kaua'i. There's greenery everywhere on that island. The resorts are amazingly large and sprawling, and IMO it's the best place to relax. There are only 2 nightclubs on the whole island, but the great thing is that the locals are extremely friendly and will ask anybody to dance without hesitation.
Maui is nice, and the west side of that island is great for seeing pods of dolphins and whales. Haleakala crater is amazing too, hiking there is like being on another planet.
The Big Island is my least favorite. The volcanoes are amazing, but after that, once you've seen one lava flat, you've seen 'em all.
Source: born, raised, and living on O'ahu for almost 30 years.