Just stayed BLT and BVC (so kinda like Boardwalk as far as walking amenities).
I have previously stayed at Jambo as well.
BLT my favorites are the viewing are for wished if you just can't deal with all the people on Main Street for one more minute, ease of getting to all monorail resorts for dining, and most importantly not being at the mercy of Disney for transportation to the park. The walk is quick and easy, a walk back for break in the hot, crowded afternoon allows for swim time and on EMH nights again no need for Disney transport just come and go as you please. We did not need to allow for that hour to hour and a half for Disney Transportation or need to use crowded busses.
BCV, Boardwalk my favorites here are similiar as far as the busses are concerned. Walking to 2 parks, having all the wonderful dining of Epcot as well as BC/YC,Swan,Dolphin and Boardwalk easily a 10 to 15 minute walk away. A quick walk over to watch illuminations about 30 minutes before it starts. Boardwalk Bakery and all its treats right there for your easy access. Nighttime entertainment in the Boardwalk area.
Jambo, the restaurant tour, the lounge for drinks in the afternoon, viewing animals from either your room or a viewing area, talking to the guides who are there about the various animals, super quick drive over to AK.