Which movie stepmother is the world's most wicked?

Queen Narissa in Enchanted (2007)

Lady Claudia Hoffman in Snow White: A Tale of Terror (1997)

Baroness Rodmilla De Ghent in Ever After (1998)

Fiona in A Cinderella Story (2004)

Joan Crawford in Mommie Dearest (1981)

Miranda Pierpoint in Wicked Stepmother (1989)

Beverly Barish-Burns in Tommy Boy (1995)

Rachel Summers in The Uninvited (2009)