All these 3 sectors are contributing largely to the economy and millions of people are in the cycle of work flow to set their financial matters move on. The 3 sectors have edges and if its for satisfaction, I would stick to growing own business, because with energy,dedication and effort - a better luck may come, sooner or later.
But, still its a question which work suits whom, therefore entrepreneurship is such bet that should be played when the other two options are locked personally.