Going to the Polynesian Cultural Center was the greatest.
Don Ho never changes, he just gets a little older, but the show is still wonderful and a lot of fun.
Shopping, of course, is the best with some really great deals to be found everywhere.
Last, but not least, was Pearl Harbor. A very somber, yet educational experience.
If you are going as a family, try to get one of the condos instead of just a hotel room. The hotels are great, but the condos just seem to be a bit more personable.
Best Way To Get Around:
The best way to get around is either public transportation (one of the best I've experienced) or walking is just great exercise.