If I had to pick 10, in no particular order:
George Washington - balls as big as they come when you consider his willingness to lead the revolution and stick it out
Thomas Jefferson - principal author of the Declaration of Independence. Did I mention big balls? I'd love to just listen to him given the impact he had on our early history.
James Madison - Father of the US Constitution and Bill of Rights, and one of the writers of the Federalist Papers. That's good for at least a six pack or three.
Teddy Roosevelt - Fought in the Spanish-American War, hunted bears, reformed the NYCPD, fought in Cuba, and "arranged" for the Panama Canal. Enough said.
Ulysses S. Grant - Leading general in the bloodiest war fought by the US in terms of US lives lost.
FDR - Polio survivor who led the US from a wheel chair and was elected POTUS 4 times. Did quite a bit I disagree with. Incredibly effective leader.
Harry Truman - ended the war with Japan.
Dwight Eisenhower - I just want to listen to him talk about WWII
Ronald Reagan - Ronnie Ray Gun. Tear Down this Wall. Peace through strength. Incredibly popular.
George W. Bush - Maintains a friendship with Bill Clinton. Frankly a beer with both of them would be very interesting, but W doesn't drink.