Our son's has his first visit to WDW, when he was just 10 days old, was to CBR. We didn't do any parks but had enjoyed wandering around the resort. We knew we could find a clean, comfortable place to stay at WDW, and we hadn't tried CBR, so it worked out nicely.
But, if I had my absolute choice, it would be either WL or AKL, for all the reasons stated here. WL has nice balconies to sit on, lots of little sitting/viewing areas about, beautiful lobby (we have great pictures of my wife feeding our son on one of the upper floors in a rocking chair above the lobby), boat launches that can get you to CR (and then via monorail to GF and Poly) or FW, the nice walk through the woods to FW (very peaceful) for lunch at Trails End Buffet. AKL savannah view would give you a nice balcony to sit on, neat lobby, lots of sitting and viewing areas around the hotel, and Boma (among others) for meals. Only issue for me with AKL would be that, unless you have a car, you'd have to take a bus to see anything outside the resort.