Obama vs. Hillary Clinton (2008 all over again!)

This blog entry is related to the poll:Who would you pick for President in 2016 if you could vote for these people? (Total: 3 posts)
It is discussing the poll topics:

It's fun to have this poll with a very limited and limiting roster of candidates, which include only Obama and Hillary Clinton on the left. It feels like the 2008 Demcratic primaries all over again!

Today like 5 years ago, I would still prefer Obama to Clinton, although I must admit that while Obama has achieved some important positive reforms, he also has largely disappointed. Thus, my preference for Obama over Clinton is not as clear cut as it used to be.

Anyway, I was wondering: what do you guys feel are the main difference between Hillary and Barack? (personality, policies, ability to enact real change, etc...)