Which one of these serial killers do you find the most evil?

Out of these convicted serial murderers: Gary Ridgway, Ted Bundy, John Gacy, Ed Gein, David Berkowitz, Albert Fish, Ed Kemper, Richard Ramirez, Aileen Wuornos, Albert Desalvo, Dennis Rader, Robert Lee Yates, John Allen Muhammad, Jeffrey Dahmer, H.H. Holmes, Joseph Kallinger, Henry Lee Lucas, David Meirhofer, Richard Chase, Robert Hansen, Raymond Fernandez, Charles Ray Hatcher, Christopher Peterson, Ottis Toole, Joel Rifkin, Gerald John Schaefer, Jack Owen Spillman, Carl Eugene Watts, James Randall, Pual Dennis Reid, David Parker Ray, or Arthur Shawcross?