I think it also depends on how familiar you are with the 4 major parks too. For families unfamiliar with the parks, it may be the best option to see as much as they can. We are seasoned veterans of WDW so we have done the Park Hopper thing for our first couple of trips and it was great, tiring, but great. Now, I was never a waterpark kind of guy. Then three years ago we opted for Waterpark Fun and More so the kids could do the waterparks and experience Disney Quest. Well, we ALL loved the waterparks and DQ so now our tickets always include Waterpark Fun and More. It has added a whole different dimesion to our vacations. Now we look forward to Crushin Gusher and Plummit Summit just as much as we look forward to Soarin or Space Mountain. We look at it this way, insted of just 4 parks to enjoy, we have 6 and DQ. Our trip this year is in August and it will be BRUTALLY HOT! So we will be at the waterparks from opening till 2 pm, head back to the hotel, change, and hit the major parks at night when it is cooler. We've managed to work it out so most nights we have EMH at the parks our ADR's are near. The only full day we will spend at any park will be at Studio's because my 5 year old son is a major CARS fan and my older sons are Star Wars fans, so that will be the only day we will suffer all day in the heat.