In contrast, Lincoln was ranked in the top three in each of the 10 categories evaluated by participants.
Former president Bill Clinton jumped six spots from number 21 in C-SPAN's only other ranking of presidents, in 2000, to 15.
Other recent presidents moved positions as well: Ronald Reagan advanced from number 11 to 10, George H.W. Bush rose from number 20 to 18 and Jimmy Carter fell from number 22 to 25.
This movement illustrates that presidential reputations are influenced by present-day concerns, said survey adviser and participant Edna Medford.
"Today's concerns shape our views of the past, be it in the area of foreign policy, managing the economy or human rights," Medford said in a statement.
After Lincoln, the academics rated George Washington, Franklin D. Roosevelt, Theodore Roosevelt, and Harry Truman as the best leaders overall. The same five received top spots in the 2000 survey, although Washington and Franklin D. Roosevelt swapped spots this year.
Rated worst overall were James Buchanan, Andrew Johnson, Franklin Pierce, William Henry Harrison, and Warren G. Harding.
The survey was conducted in December and January. Participants ranked each president on a scale of one, "not effective" to 10, "very effective," on a list of 10 leadership qualities including relations with Congress, public persuasion and moral authority.