Our son's first Disney stay was a split between CR and Poly, when he was two and a half. We though he would prefer the CR because of the monorail. He did really love seeing the castle from our tower room (and the fireworks). We, as parents, loved the walking path to MK. He seemed to like the Polynesian better, mostly for the volcano pool. He just loved that slide. He also really liked seeing the little duckling families walking around the grounds, and the torches at night. My husband and I loved being able to walk to the TTC for buses to other parks (more direct than sharing with multiple resorts and they at least seemed to come more frequently) or the monorail to Epcot. We did Chef Mickey's at CR and Ohana at Poly, and grabbed lots of dole whips at the Poly, too. For us, we usually pick the Polynesian when choosing between those two, although we are booked at BLT for now for our next trip. I know it isn't helpful to say that you can't really go wrong with either, but it is true. These are among the most conveniently located hotel choices at Disney because of the ability to walk to MK or TTC. We really do love them both. For what it is worth, I prefer the grounds at the Polynesian and the rooms at CR.
