Hillary did run in 2008, and lost to Obama, I think she would be an awesome president. Since she just resigned as Secretary of State because she is tired, I doubt she'll be up to running for the position of president. I agree, she would definitely be a tremendous president and I would vote for her in the next election without a doubt.
She will be weighed down with the investigation into Bengazi and if Obama doesn't right the economy, people won't want a Democrat. On the other side, if she manages to find a way out of the scandle, and Obama gets employment up, anything is possible.
I agree with shinypate1, it depends on how the witch hunt goes on Bengazi as to whether or not she will even be able to run. I imagine the conservatives will be trying to discredit her as well as the President in the upcoming months for a couple of reasons, 1 to keep the attention off of the fact that they wont pass any legislation in Congress and 2 to destroy the reputation of the Democrats, or at least try and especially Hilary and the President., I imagine they will once again try to use impeachment to their benefit. Rediculous as it is