It depends upon what you want/need to be comfortable. If everyone wants to stay in the one room and are willing to sleep 2 to a bed, then most of the deluxe resorts will have rooms that can accommodate 5 women. You will, in most cases, have two queen beds and a daybed/pull out sofa. This scenario will only have one bathroom. With 5 in the room, it may be worthwhile to consider Club Level, which would give you a lounge to spread out in as well as breakfast and snacks. Easy access to at least one theme park is a nice bonus.
Deluxe Rooms in the Epcot area resorts will often sleep 5 as well, but are generally smaller than the three MK area resorts. "regular' rooms at the AKL and WL will only sleep 4.
Don't forget the extra charge for over two adults in one room.
AoA is really well themed and has enough sleeping surfaces for all, but only one real bed. However, this resort has two bathrooms and a small kitchenette that can be used to get some light meals, such as breakfast. There are also suites at ASMu that will accommodate you all, with two bathrooms and only one real bed, but enough sleeping surfaces overall.
DVC properties, if available, are nice, but with 5 adults I wouldn't want to consider a studio (although technically I think you would be allowed to stay there, that trundle is small). OKW would probably be your best bet.
The cabin at FW does sound like fun. It has one real bed, the bunk beds and the fold out in the living room. Again, only one bathroom. Also, getting around from here can be an issue for some because you have to use internal transportation to get to the WDW general transportation.
If you want the least expensive and the most real beds plus two bathrooms at the lowest price, then 2 value resort standard rooms will be the best choice with 4 real double beds (at All Star, Pop now has one real bed in at least some rooms). If queen beds are important, then 2 rooms at a moderate would be a good choice. Here you will get 4 queen beds and 2 bathrooms. However, any choice with 2 regular rooms may mean being a bit distant from one another. Connecting/adjacent rooms are a request only. Two of the moderate choices (CSR and CBR) are currently undergoing construction. CBR is fairly disruptive, IMO, so I wouldn't choose to stay there. However, if it doesn't matter to you, availability and price may be a bit better there. I would choose either POR or POFQ, personally, if going for two moderate rooms. POR technically will sleep 5 in some rooms but the trundle bed is meant for a small child and would be uncomfortable at best, IMO, for most adults.
My personal choice, FWIW would be two moderate rooms at POR in a preferred location, if budget allows. Love the boat to DS! OR deluxe with CL is togetherness is not an issue.
Good luck choosing and enjoy your trip!!!
