Rad Onc, but not for all of the typical reasons o f "good money and good hours". I shadowed quite a few Rad Onc's over a six month time frame and found it to be very rewarding. I like the time you spend with patients and they technical aspect as well. The physics aspect is challenging, the residency is competitive, and the wins in practice are incredibly rewarding. I am interested in academic medicine to improve procedures and cancer screening methods. I don't want to be forced to have a quota of patients or dollar to meet which many private practices are guilty of having.
Otherwise maybe General Surgery followed by a Surgical Oncology residency. I've had too many family members who have died of cancer and I am passionate about making a difference in some aspect of Oncology. Also I have an incredible degree of dexterity which lends itself well to both specialties, even more so in the latter.