Another Jenny here . . .
The pack n plays fit in the closet in BWV, WLV, but not BCV or SSR. They fit in the laundry room at OKW. Actually, they fit ANYWHERE in OKW--those rooms are huge. There is also a loveseat in addition to the pullout couch in the living room so you could try and put the bedrails on the loveseat.
My 2 1/2 year old (who is over 40" so doesn't fit in the pack and play) sleeps on the pullout couch with bedrails I get from housekeeping. I think he likes the feeling of being contained by the rails. We have also used a single blow up bed in our room for him. He likes it pushed against the wall under the window--again I think he likes feeling like he won't fall out.
As far as resorts, I think BCV has a great sandy area that's only 1-2 feet deep in parts that's great for little ones to play and get wet without worrying about them getting into deeper water. BCV also has a beach which is a nice place for them to play outside when it's nice but not warm enough to swim. SSR has a zero-entry area and pop jet area which is good for little ones. WLV doesn't have the best baby pool, but they do have a beach to play on, and the playground is on the beach which is fun/safe.
I like the 1bd over the studio for the (1) laundry, and (2) kitchen. No matter where we eat dinner, when we get back to the room they say "I'm hungry."
Jenny