There are several nice hospitals in Atlanta that offer great services for patients, as well as employment options for people looking to work in the medical field. In my opinion, the top 3 hospitals are: Emory University Hospital, St. Joseph's Hospital, and Piedmont Hospital.
Now, if you are looking for specialized care for children, there are some great pediatric hospitals in Atlanta as well. Children's Healthcare of Atlanta and St. Jude Children's Hospital are two excellent choices to consider. Good luck!