I applied to Darden, Yale R1, Michigan R2, and UNC, Texas, Cornell R3
Darden offered me an invitation to interview one week after I submitted my application. As I was dinged, I expect that my interview exposed my youth. That said, I feel that I would still be a strong candidate next year.
As far as career goals go, I want to work in a marketing position for a tech company for a while and ultimately transition into a marketing role at a company such as Global Partnerships or Kiva International, which specializes in microfinance. I don't know that my vision can get much clearer than that.
The question is whether or not it would be worth it to put off my MBA for another year or two. From the standpoint of net present value, it makes little sense, even if UNC isn't as highly ranked. However, I feel that there is a lot to be said about the case method.