If you're into the outdoors, I recommend Maui. My visit there last year was the best week of my life.
There are plenty of resorts on the west coast, complete with golf and all the amenities. When I visited, we were there to see everything that didn't have anything to do with civilization, so we didn't do any of that. But there are plenty of trails, hikes, horseback, mountain biking, kayaking, and sunrises to see. Watching the sun rise above the clouds at 10,023 ft. atop Haleakala is one of the most liberating experiences of my life. Then take the 20 mile hike through the crater. Also, Seven Pools and Waimoku Falls, if memory serves me, on the east coast. The road to Hana. And then break the car rental contract and take the off roads back...
I've also seen Oahu, which is good if you're not so devoted to the outdoors. Maui is much less developed, but that's the way I like things...