Ans: Hustlers.

Hustlers are self-starter entrepreneurs and are determined to succeed by working hard with innovative ideas or existing ideas. They are willing to work hard and put in constant effort for success. They often start small and work toward growing a bigger business with hard work rather than capital.

And on the other hand Innovators are persons who introduce something new in terms of a product, service, process, model, or idea into the markets. It is a long-term process of growing a business. Its failure rate is more than hustler entrepreneur. 

So I go for Hustler entrepreneurs as a successful entrepreneur.