First of all, Phenom, you and c20916 are going to be on the opposite ends of the island. Getting together will be tedious. There's nowhere to meet in the middle thats worth it.....(about 45 mins. apart.)
Aside from one of the Kapalua courses, I think he will be getting the best of the golf. Wailea, blue and gold courses are very nice and chalenging from the tips. The course at Ka'anapali isn't anything special and the wind howls.
You however will be getting the best of everything else. Lahaina has nightlife, more restaurants to choose from and budhachi hit the nail on the head about the snorkling. Just below Kapula golf courses is the best sknorkling on the island. The day boats (out of Lahaina) go there also. A day trip to Molokini for snorkling is worth it if you have the time and like to get in the water.
I live on the left coast so I go there around 4 times a year. Usually split time between Maui and the Big Island. You'll love it. Have a great time!!
