I vote for CHOP
It has been 6 years since my son was diagnosed – Labor Day 2000 – and he got excellent treatment at Children’s Hospital of Philadelphia which also has the in-patient rehab center called Children’s Seashore House. The staff was incredible from the drs, nurses, pt therapists, and cafeteria staff. They had a music therapist (who played soft guitar music when my son was in pain and it really soothed him) and play therapist (who encouraged him to play Nintendo as physical therapy). I only had one negative experience and the staff followed up quickly with corrective action.