My personal favorite is LBJ, but to be fair, I'd say this:
Tier 1
1.) Franklin D. Roosevelt
2.) Abraham Lincoln
3.) George Washington
Tier 2
4.) Lyndon B. Johnson
5.) Harry S. Truman
6.) Theodore Roosevelt
7.) Barack Obama
8.) Thomas Jefferson
Tier 3
9.) James Monroe
10.) Dwight Eisenhower
11.) Woodrow Wilson
12.) Bill Clinton
13.) John F. Kennedy
14.) Andrew Jackson
15.) Ulysses S. Grant
I put FDR on top because he saved the country from depression (may even have saved democracy) and was an excellent leader during World War II.
If Watergate didn't happen, Nixon would be in Tier 2.
Why is JFK ranked so high, he didnt have that many accomplishments in his admin. Most of his agenda was passed under the LBJ administration not his