Just saw that you didn’t like marketing. Too bad–I was going to suggest marketing. 
It’s more creative and less quant-y than other business specialties. Have you considered Internet marketing or (if you’re more quant-oriented) digital analytics? I find digital marketing fascinating because it’s changing at the speed of light – there is always something new to learn. And there are so many creative, crazy people working in the digital arena – e.g., at little start-ups where you can get in on the ground floor. Something to consider anyway. Hope this helps!!