Question: Who directed more Abbot and Costello films, Arthur Lubin or Ciro Ippolito?

Context articles: Ride 'Em Cowboy
Vanilla and Chocolate
Arthur Lubin
Buck Privates
Francis (film)
Ciro Ippolito
Alien 2: On Earth
In Society
A Successful Failure
The Incredible Mr. Limpet

Ride 'Em Cowboy is a 1942 film starring the comedy team of Abbott and Costello.
 The supporting cast features Dick Foran, Anne Gwynne, Johnny Mack Brown, Ella Fitzgerald, Samuel S. Hinds, Douglas Dumbrille and Morris Ankrum, and the movie was directed by Arthur Lubin.
Vanilla and Chocolate (Italian: "Vaniglia e cioccolato" ) is a 2004 Italian romance film directed by Ciro Ippolito.
Arthur Lubin (July 25, 1898 – May 12, 1995) was an American film director and producer who directed several "Abbott & Costello" films, "Phantom of the Opera" (1943), the "Francis the Talking Mule" series and created the talking-horse TV series "Mister Ed".
 A prominent director for Universal Pictures in the 1940s and 1950s, he is perhaps best known today as the man who gave Clint Eastwood his first contract in film.
Buck Privates is a 1941 musical military comedy film that turned Bud Abbott and Lou Costello into bona fide movie stars.
 It was the first service comedy based on the peacetime draft of 1940.
 The comedy team made two more service comedies before the United States entered the war ("In the Navy" and "Keep 'Em Flying").
 A sequel to this movie, "Buck Privates Come Home", was released in 1947.
 "Buck Privates" is one of three Abbott and Costello films featuring The Andrews Sisters, who were also under contract to Universal Pictures at the time.
Francis is a 1950 American black-and-white comedy film from Universal-International that launched the Francis the Talking Mule film series.
 "Francis" is produced by Robert Arthur, directed by Arthur Lubin, and stars Donald O'Connor and Patricia Medina.
 The distinctive voice of Francis is a voice-over by actor Chill Wills.
Ciro Ippolito (born Naples, Italy, 27 January 1947) is an Italian film director and producer.
 He is known to horror film fans for his 1980 opus "", which he coproduced, wrote and directed.
Alien 2: On Earth/ Alien 2 Sulla Terra, also known as Alien Terror and Strangers, is a 1980 science fiction film, written and directed by Ciro Ippolito before the trademark "Alien" was registered.
 It was released following the success of the 1979 film "Alien" as an unofficial sequel, albeit having little connection to the film.
In Society is a 1944 film starring the comedy team of Abbott and Costello.
 It was the first of five Abbott and Costello films to be directed by Jean Yarbrough.
 It was re-released in 1953.
A Successful Failure (1934) is an American film directed by Arthur Lubin.
 It was Lubin's first movie as director.
The Incredible Mr. Limpet is a 1964 American live-action/animated adventure film from Warner Bros. It is about a man named Henry Limpet who turns into a talking fish resembling a tilefish and helps the U.S. Navy locate and destroy Nazi submarines.
 Don Knotts plays the title character.
 The live action was directed by Arthur Lubin, while the animation was directed by Bill Tytla, Robert McKimson, Hawley Pratt, and Gerry Chiniquy.
 Music includes songs by Sammy Fain, in collaboration with Harold Adamson, including "I Wish I Were a Fish," "Be Careful How You Wish," and "Deep Rapture."