I have to respectfully disagree with Pam. I can't imagine spending any length of time in a room at POR with 3 6 year old girls ( I have 6 and 8 year old, both girls). With all your luggage and their excitement...you will feel like you are in a closet. I was going to attempt this on an upcoming trip with my best friend and her 7 year old daughter until I stayed at French Quarter for a long weekend with 2 adults/2 kids in the room. I would only do it with 5 for a very short, max 2 nights time.
As for the cost, I guess it depends on if you are eligible for any special discount rates. In researching for my upcoming trip (with FL res or AP disct.) I found 2 values to be the cheapest at 176/night (includes 1 fridge and tax) cabin next at 199/night, 2 moderates came in at 244/night.
As for deluxes Wilderness Lodge can't accomodate 5 or so I was told. AKL you have to get a deluxe room which came to 317/night. GF was 327/night. Poly and CR were in that same ballpark. With these rooms you get less space, 1 room, someone sleeps in a daybed, only one bathroom. I have yet to see the plus to paying the extra $$ for that over 2 values or moderates.
I know others on the board have different experiances and I am sure they will weigh in. It all comes down to personal preference and how you like to spend $$. We spend little time in the resort and would rather have the $$ we would spend to upgrade to a deluxe room to spend in the park or or future trips.
When trying to decide where to stay this next trip I realized that if we stayed at 2 values instead of AKL, I would save the cost of my annual passes for me and my girls for next year! So all I did was downgrade to a hotel the kids LOVE and put that $$ aside for June when it is time to renew. Nice bonus in that account!