There are many variables you should consider... for instance, what age group of children do you have? The teenagers will love SSR (Downtown Disney area), the younger group WLV (near Magic Kingdom) and AKV, and so on... We have young children in strollers and prefer the EPCOT resort area BCV & BWV because we do not have to take the busses often... the strollers even go on the boats in that area... but mainly because we can set up the stroller (packed with stuff), and not have to load and unload, fold and unfold to get on and off the busses. (with the exception of Animal Kingdom and Downtown Disney)
Also, when do you usually travel? If it is in the value seasons, then don't worry about your home resort. We travel in Sept, Oct, Jan and the week after Thanksgiving... (unless there is a hurricane, then we go then too). We have never had a problem getting what we want in those months. And with 5 children of all ages (17, 16, 5, 1, 3 months) we can not really plan far ahead.
If you travel in the busier seasons, then you may want to try and buy into the resort you think you will want to stay in most to take advantage of the 11 months to book ahead.
If you spend a lot of time in the pool, then BCV has the best one.
With the dining plan, we like to be close to EPCOT for the dining options available in that particular park. Even though most people end up dining in the different resorts more than within the parks. (O'hana, 1900 PArk Fare, Citricos, Ca Grill, Artist Point, Boma, etc..) In our humble opinion, EPCOT has the best dining to offer from inside the parks.
I could go on forever because I refer people to Disney all the time and each family has their own "thing" that they like best... so find yours and choose the one that best fits your needs!