I wanted to specialize in Accounting when I was younger, but I did not have that much ability in mathematics. I think Marketing and Accounting are the best fields of specialization in getting a Business degree.
I've always thought marketing research would be a fascinating area. It's all about what makes people tick, what they buy, and the factors that influence them. However, I am not a sales-oriented person as many people are who are interested in majoring in business.