We are coming to Kauai in early October, and are spending a week on the North Shore. To use miles, we will also need to spend an extra night (quite a hardship). We are looking at either an ocean front room at the Sheraton or an ocean front or ocean view room at the Marriott. Sure....our first choice would be an ocean view room at the Hyatt, but the price differential is just too great.
I like the idea of spending the extra day in the Poipu area, but I also am attracted to the pool at the Marriott.