Question: Who has directed more Best Picture Oscar-winning films, Alfred Hitchcock or William Wyler?

Context articles: Alfred Hitchcock's Anthology – Volume 4
1940s in film
Wuthering Heights (1939 film)
William Wyler
Alfred Hitchcock
Alfred Hitchcock's Anthology – Volume 5
Alfred Hitchcock's Anthology – Volume 1
Teresa Wright
List of The Alfred Hitchcock Hour episodes
Alfred Hitchcock's Anthology – Volume 2

Alfred Hitchcock's Anthology – Volume 4 is the fourth installment of "Alfred Hitchcock's Anthology", one of the many Alfred Hitchcock story collection books; edited by Eleanor Sullivan.
 Originally published in hardcover as "Alfred Hitchcock's Tales to Scare You Stiff" in 1978, the book includes 26 short stories and a short novel called "The Graveyard Shift" by William P. McGivern.
 Also, within the 26 short stories is "The Green Heart" by Jack Ritchie which was made into the 1971 film "A New Leaf".
Hundreds of full-length films were produced during the decade of the 1940s.
 The great actor Humphrey Bogart made his most memorable films in this decade.
 Frank Capra's masterpiece "It's a Wonderful Life" and Orson Welles's masterpiece "Citizen Kane" were released.
 The film noir genre was at its height.
 Alfred Hitchcock made his American debut with the film "Rebecca", and made many classics throughout the 1940s.
 The most successful film of the decade was Samuel Goldwyn's "The Best Years of Our Lives", the film was directed by William Wyler and starred Fredric March, Myrna Loy, Dana Andrews, Teresa Wright, Virginia Mayo, and Harold Russell.
 The film won nine Academy Awards.
Wuthering Heights is a 1939 American drama romance film directed by William Wyler and produced by Samuel Goldwyn.
 It is based on the novel, "Wuthering Heights" by Emily Brontë.
 The film depicts only sixteen of the novel's thirty-four chapters, eliminating the second generation of characters.
 The novel was adapted for the screen by Charles MacArthur, Ben Hecht and John Huston.
 The film won the 1939 New York Film Critics Award for Best Film.
 It earned nominations for eight Academy Awards, including for Best Picture and Best Actor in what many consider Hollywood's greatest single year.
 The 1940 Academy Award for Best Cinematography, black-and-white category, was awarded to Gregg Toland for his work.
 Nominated for original score (but losing to The Wizard of Oz) was the prolific film composer, Alfred Newman, whose poignant "Cathy's Theme" does so much "to maintain its life as a masterpiece of romantic filmmaking."
William Wyler (born as Willy Wyler; July 1, 1902 – July 27, 1981) was an American film director, producer and screenwriter.
 Notable works include "Ben-Hur" (1959), "The Best Years of Our Lives" (1946), and "Mrs. Miniver" (1942), all of which won Academy Awards for Best Director, as well as Best Picture in their respective years, making him the only director of three Best Picture winners as of 2017.
 Wyler received his first Oscar nomination for directing "Dodsworth" in 1936, starring Walter Huston, Ruth Chatterton and Mary Astor, "sparking a 20-year run of almost unbroken greatness."
Sir Alfred Joseph Hitchcock {'1': ", '2': ", '3': ", '4': "} (13 August 1899 – 29 April 1980) was an English film director and producer, referred to as the "Master of Suspense".
 He pioneered many elements of the suspense and psychological thriller genres.
 He had a successful career in British cinema with both silent films and early talkies and became renowned as Britain's leading filmmaker.
 Hitchcock moved to Hollywood in 1939 and became a U.S. citizen in 1955.
Alfred Hitchcock's Anthology – Volume 5 is the fifth installment of "Alfred Hitchcock's Anthology", one of the many Alfred Hitchcock story collection books; edited by Eleanor Sullivan.
 Originally published in hardcover as "Alfred Hitchcock's Tales to Send Chills Down Your Spine" in 1979, the book contains 29 short stories by many well-known crime fiction novelists.
Alfred Hitchcock's Anthology – Volume 1 is the first installment of "Alfred Hitchcock's Anthology", one of the many Alfred Hitchcock story collection books; edited by Eleanor Sullivan.
 Originally published in hardcover in 1976 as "Alfred Hitchcock's Tales to Keep You Spellbound", the book is a collection of 30 stories originally published in "Alfred Hitchcock's Mystery Magazine".
Muriel Teresa Wright (October 27, 1918 – March 6, 2005) was an American actress.
 She was nominated twice for the Academy Award for Best Supporting Actress: in 1941 for her debut work in "The Little Foxes" and in 1942 for "Mrs. Miniver", winning for the latter.
 That same year, she received a nomination for the Academy Award for Best Actress for her performance in "The Pride of the Yankees" opposite Gary Cooper.
 She is also known for her performances in Alfred Hitchcock's "Shadow of a Doubt" (1943) and William Wyler's "The Best Years of Our Lives" (1946).
The following is a list of the 93 episodes of the television program The Alfred Hitchcock Hour, which is a continuation of the program "Alfred Hitchcock Presents" (1955–60).
 "The Alfred Hitchcock Hour", like its predecessor, is an anthology series in the thriller genre.
 NBC renamed the program when they extended its running-time from about 25 minutes to about 50 minutes.
 Both programs were hosted by Alfred Hitchcock, whose directorial work in thriller films is extremely influential.
 Hitchcock directed only one episode of "The Alfred Hitchcock Hour": "I Saw The Whole Thing" (Season 1, episode 4).
Alfred Hitchcock's Anthology – Volume 2 is the second installment in the "Alfred Hitchcock's Anthology" series.
 Originally published in hardcover as "Alfred Hitchcock's Tales to Take Your Breath Away" in 1977, this issue contains 29 stories from "Alfred Hitchcock's Mystery Magazine" that, by the editors, were believed to be the best published the preceding year (1977).