This seems to be a question that people are thinking about out of disappointment with Obama. It's like what if I would have done this instead of doing what I did. What would my life have been like. A person can drive themselves nuts thinking about things like that. It's an area of thought that should be avoided.
Even though we are now, and I hope temporarily, disappointed in Obama, we forget his positive qualities. One reason he got elected over Hillary, who had a much better resume, was that Obama could make wonderful speeches, much better than Hillary ever could. Hillary never said anything that was really inspirational. Obama's speeches inspired the entire world and helped repair all the damage in our foreign relations that Bush instigated. Foreign countries hated the Bush administration. I think the reason President Obama got the Nobel Peach Prize was just because he gave such good speeches. Obama has taken out the American hubris in our foreign policy, which was badly needed. Would Hillary have been able to accomplish that? Obama is now being looked on as weak, but did Hillary ever come off very strong? Before being elected President, he came off stronger than she. It's doubtful that she would have gotten stronger as President. In his post President years, Bill Clinton has really distinguished himself. If his wife had gotten elected President, I wonder if he would have done the good same things that he has been doing.
Hillary probably would have received just as much prejudice for being a woman that Obama has received for being mixed race. Hillary had the advantage of already knowing all the leaders of countries, but that advantage was best used in her being Secretary of State. That is another good thing that Obama did--he appointed Hillary Secretary of State. Most Presidents are not that generous to their former adversaries. He was trying to follow Lincoln's example, which is a good prototype to go by. Biden has also become a popular and admired vice-president, as Cheney was never able to do. That was another good pick from President Obama.
This morning on Morning Joe they talked about Obama not having any business experience. That all he knows about economics and business is what he has read in books. Hillary never started a business either that I know of.