FYI - for Make a Wish, size of the family does not matter. I know families that have taken grandparents, personal care aides, etc. We only went with the 4 of us. The best thing about it was front of the line access for character greetings in both WDW, Universal and Sea World. Also, free pictures at Universal and Sea World. As soon as a CM sees the special button that a make a wish child wears, they immediately take the party to the front of the line. We were told that this was not the case at WDW, but everytime we stood in line for a character greeting, we went right to the front with the CM announcing that there was a wish child here. What we like best about our stay at BC instead of GKTW, was we got to use the EMH's. When we were going into the MK one night, a CM stopped us and talked to us about how he volunteers every week at GKTW for parents night out. I explained to him that we did not qualify for parents night out because of personal care issues with my son. He then went on to ask if we liked staying at GKTW villas. I stated we had hoped to stay there, but they were full so we were staying at the BC resort. His words: "My, my ... you sure did get the upgrade. Enjoy your stay and hope to see you again around the parks!"
In other words, it really was a very special trip. So, if I were you, please consider it.

For all the trials and tribulations you go through having a child with DS, it is nice to actually get a "reward" like a Make A Wish. My son sees 7 specialists over an hour away and when he had his scoliosis surgery, we had to go 150 miles one way. Yes, I am tired of medical personnell, but now that my father's health is getting worse (he is 85), I am proud to steer my mother in the right direction, ask the right questions and generally be helpful.