Lets talk experience for a second, Barack is either on par or above Lincoln, Reagan, G.W Bush, Carter and Kennedy as far as political experience goes.

Take it a step further and talk Judgement vs Experience.

James Buchanan - Arguably the most experienced President and he essentially led the country to a Civil War

Richard Nixon - Probably the most experienced president of our generation and he left the presidency in shame. No explanation needed.

Andrew Johnson - 15 years of experience and pretty much killed Lincoln's legacy. The only other president to be Impeached, we know who the other is.

Now.. the flip side of that, less experience..

Frankin Roosevelt - One of the least experienced presidents in history, relatively new to politics and the longest serving president ever.. 4 terms and presided during WWII.

Woodrow Wilson
Theodore Roosevelt
Ulysses Grant was very inexperienced and was plagued with corruption but still made history for his efforts.
Lincoln (ironically, a politician from Illinois)
Truman
Jefferson
And Eisenhower.. all relatively new to the executive branch of government.

Kind of strange but.. when you look at it experience seems to have NOTHING to do with what makes a president great but rather their judgement in time of crisis.

Lincoln had ZERO experience in wartime or military but presided the country over what was the most pivotal period of time in the Civil War.