I think that you are asking TOO broad of a question. You could actually get thousands and thousands of replys, IF "TUGGERS" took the time.
Maybe you should go to the Hawaii reviews, and limit your choices to several resorts and several islands, and "then" ask the questions.
Each island has its own "flavor" and things to do. What does you son like, or want to do, while in Hawaii? How long will they be there? (In my opinion, ONE week will NOT be enough time !!!)
E-mail me privately, and I'll "try" to be helpful.
Tony