I guess it depends on what you'll do if you don't get in. Personally, I want to go to BC more than I can remember wanting anything. But if I don't get in, I'll still be happy to go to Suffolk or even New England. Law school is what I want and going to Suffolk would be like getting some ice cream that isn't my favorite flavor. Its still ice cream.
However, if you only want to go to one school and don't want to go anywhere else, then I think you really need to re-think your priorities. The main goal here is to be an attorney, right?