My fav's are the Swan & Dolphin. But I would also have no objection about the Boardwalk resorts either.
What do I love about the S/D?
1. Tubbis - 24 hour food. Good pizza. $10 refillable soda mugs that make a great souveneir.
2. Swan is quiet and relaxing. (I consider the Dolphin a little 'noisier'.)
3. Either resort is a 5 minute (or less?) walk from Boardwalk. So close, but yet so peaceful. Almost as if you escape to your own little world when you go 'home' for the night.
4. 15 minute walk to either Epcot or MGM (tops).
5. Easy, convenient parking access. In and out to your vehicle quickly.
6. Walk to Disney's mini-golf.
7. Great discount rates. Plus, if you upgrade to Club level, great breakfast and eve snaks.
8. Comfy rooms.
9. Wondeful pool area. Nice shaded place for me to sit while the kids swim.
I don't know, I could go on and on. I am very prejudice for Swan/Dolphin. Most all of this also probably applies to the other Boardwalk resorts. What do you lose? Mickey wake up calls, Mickey soap(?), and room-charging priviledges. Do those bother me? Nope. I'll take my oatmeal soap and run like the wind to the Swan!
I doubt you will be disappointed whatever your choice. Good luck.