My opinion as a fellow applicant...First of all, that is a great list. Probably can't close doors with any of those options. Obviously Hutch and Stanford are probably strongest in BMT and heme malignancy, but you can't go wrong for bench research at a Harvard program, UCSF, Penn, JHU, or the NHLBI-NCI. If bench to bedside gets you excited, NIH has tons of intramural funding for that sort of thing. I think when the choices are so equal and you have no strong career preference, then going to the best location is probably the best choice. After Sloan, Farber, and MD Anderson, there is probably a list of ten programs that are all outstanding. They might not knock socks off like the big 3, but they will all open doors to you.