I voted for six or more. Because we go to WDW frequently, we tend to really spend a lot of time at our resort. In fact, the "resort time" is one of the things about our vacations that we look forward to most. We always spend at least one big chunk of each day just enjoying our resort - swimming, reading by the pool, relaxing in the hot tub, renting bikes or boats, just walking around the grounds, etc. Last December, when we stayed at the Wilderness Lodge, we spent a lot of time just hanging out in the awesome lobby (reading in the little nooks, drinking hot chocolate in front of the fire place, etc.) and a lot of time playing checkers in the Iorn Spike room! We never spend a whole day in the parks anymore, although we did when we first started going. Now our days tend to look like this -
Sleep late and enjoy the resort, then head to a park for the late afternoon or evening.
OR
Head to a park first thing in the morning, then head back to the resort after lunch to relax and enjoy the resort. Then, sometimes we head back out to a park around dinner time. Or sometimes we just eat at one of the restaurants at our resort and spend the rest of the evening hanging out at the pool, etc.
In fact, we usually have at least one day on each trip when we never even leave the resort! That's why the great Disney resorts are worth the extra money to us. They are so much more than just a place to sleep! You could have a great vacation in some of the resorts we have stayed in (Wilderness Lodge, Polynesian, Coronado Springs) and never even set foot in a park! Don't get me wrong - we LOVE the parks!! We just don't feel like we need to see and do everything anymore so we enjoy relaxing and hitting our favorites. That gives us more time to really enjoy our resort!