For me I would say Gordon Ramsay.
If you look at his background, and some of the other members of his family, he is the a shining example of what you can achieve with a little talent and sheer damn hard work.
Also a side of him that is not portrayed that often is that he employs people regardless of their background, he did a cooking demo in a prison once and one of the inmates had some talent and he took hin on when he was released.
You always get the feeling that he strives for utter perfection in everything he does and will not settle for second place, he is an out and out winner.