Assassinio nella cattedrale ("Murder in the Cathedral") is an opera in two acts and an intermezzo by the Italian composer Ildebrando Pizzetti.
 The libretto is an adaptation by the composer of an Italian translation of T.S. Eliot's play "Murder in the Cathedral".
 The opera was first performed at La Scala, Milan on 1 March 1958.
 The opera was performed for the first time in Canada the following year at the Montreal Festivals.
Le donne rivali is an intermezzo in two acts by composer Domenico Cimarosa with an Italian libretto by a now unknown poet.
 It is speculated that Giuseppe Petrosellini may have been the author of the libretto.
 The opera premiered at the Teatro Valle in Rome during Carnival in 1780.
 The original choreography was created by Alberto Cavos, the original costumes by Antonio Dian, and the original scenery by Domenico Fossati.
 Music critics particularly admire the final quintet that closes the opera.
 In recent years, "Le donne rivali" has been occasionally revived and recorded.
 In 1991, the Juilliard Opera Center intertwined the work with Mozart's unfinished opera "Lo sposo deluso", which shares the same libretto, to make one large work.
Destiny (also known as "Fate", Czech: "Osud" ) is an opera in three acts by Leoš Janáček to a Czech libretto by the composer and Fedora Bartošová.
 Janáček began the work in 1903 and completed it in 1907.
 The inspiration for the opera came from a visit by Janáček in the summer of 1903, after the death of his daughter Olga, to the spa at Luhačovice.
 There, Janáček met Kamila Urválková, who had been the subject of an opera by Ludvík Čelanský, "Kamila", where she felt that Čelanský had falsely depicted her personality.
 After learning that Janáček was a composer, Urválková persuaded Janáček to write another opera to counteract Čelanský's portrait of her.
Il prigionier superbo ("The Proud Prisoner") is an "opera seria" in three acts composed by Giovanni Battista Pergolesi to a libretto attributed to Gennaro Antonio Federico and based on an earlier libretto by Francesco Silvani for Gasparini's opera, "La fede tradita e vendicata".
 It was premiered at the Teatro San Bartolomeo in Naples on 5 September 1733 and received further performances in October.
 The opera, with its labyrinthine plot involving the rivalry of Metalce (King of the Goths) and Viridate (Prince of Denmark) for the hand of Rosmene (a Norwegian princess whose father is Metalce's prisoner), soon sank into oblivion, but its comic intermezzo, "La serva padrona" (also by Pergolesi) was to achieve considerable success when performed on its own.
Le serve rivali is a dramma giocoso per musica in two acts by composer Tommaso Traetta with an Italian libretto by Pietro Chiari.
 The opera originally premiered in one act as an intermezzo at the Teatro San Moisè in Venice, Italy in the autumn of 1766.
 Traetta greatly expanded the work, and the full opera was first performed at the Fenzo Modesto in Venice later that same year.
Didone abbandonata is an opera libretto in three acts by Pietro Metastasio.
 It was his first original work and was set to music by Domenico Sarro in 1724.
 The opera was accompanied by the intermezzo "L'impresario delle Isole Canarie", also by Metastasio.
In music, an intermezzo ( , ] , plural form: intermezzi), in the most general sense, is a composition which fits between other musical or dramatic entities, such as acts of a play or movements of a larger musical work.
 In music history, the term has had several different usages, which fit into two general categories: the opera intermezzo and the instrumental intermezzo.
In theater and music history, a burletta (Italian, meaning "little joke", sometimes burla or burlettina) is a brief comic opera.
 In eighteenth-century Italy, a burletta was the comic intermezzo between the acts of an "opera seria".
 The extended work Pergolesi's "La serva padrona" was also designated a "burletta" at its London premiere in 1750.
Intermezzo, Op.
 72, is an opera in two acts by Richard Strauss to his own German libretto, described as a "Bürgerliche Komödie mit sinfonischen Zwischenspielen " (bourgeois comedy with symphonic interludes).
 It premiered at the Dresden Semperoper on 4 November 1924, with sets that reproduced Strauss' home in Garmisch.
 The first Vienna performance was in January 1927.
La serva padrona (The Servant Turned Mistress) is an opera buffa by Giovanni Battista Pergolesi (1710 – 1736) to a libretto by Gennaro Antonio Federico, after the play by Jacopo Angello Nelli.
 The opera is only 45 minutes long and was originally performed as an intermezzo between the acts of a larger serious opera.
 (The same libretto was set by Giovanni Paisiello in 1781.)

Question: Which opera, Intermezzo or Destiny, has more acts?
Answer: Destiny