Be my own boss. I love having flexible working hours. The responsibility cuts both ways, on the one hand you are the one who determines how much you earn when you work for yourself by how much you work, but you have to work hard to make it worthwhile.
Have done both, and I am working for myself now for a reason - and have been for the last 2.5 years. I enjoy it. The hours are longer, yet the freedom is sensational. There are pros and cons of both. If you're not too entrepreneurial, and you want set working hours - then having a boss is the way to go.