we haven’t stayed yet, but for our upcoming trip we just moved from a standard room to a deluxe studio. we’re a family of 3 (2 adults + 7 month old). the primary benefit for us is that a pack and play will fit in one bathroom, so we can use it as LOs ‘bedroom’ at night while still having lots of living space for us. i’m guessing you’ll have a harder time convincing a 4YO to sleep in the bathroom, but still, the second bathroom and a bit more living space could be valuable. I guess the big question: would your LO be happy sleeping on a murphy bed, or will she want a full bed to herself?
On the flip side, the standard rooms at the poly are the biggest deluxe rooms on property. In a standard room you’d only have one bathroom, but it’s large and the room would be plenty big enough for your family.
at the poly, standard rooms on the second floor only have juliette balconies, but in the villas you’re guaranteed a balcony/patio. if you’re concerned about living space while your kiddo sleeps, a patio could be worth the added cost alone.
one drawback of the villas to me is that the buildings are a bit further away. it won’t be significant, but i think it will take an extra couple of minutes to get anywhere because of the added walking time.
you should get daily mousekeeping if you want it. i believe you’ll also have access to the dvc laundry, where there’s no charge to use the machines (this is my understanding before visiting—I’m sure someone will correct me if I’m wrong).
phew. i hope that helps!