Who is Don Corleone's favorite child?
Barzini
At the Long Beach Causeway toll plaza, Barzini's men trap Sonny and shoot him to death. During a meeting with the other crime family dons to establish peace, Vito realizes that Barzini masterminded Sonny's murder. After Michael returns from Sicily, he assumes Sonny's place as Vito's heir apparent.Friend. Even though it's very subtle barzini was actually threatening Vito or him stating that Vito. Must share his connections. He's giving Vito an ultimatum either accept and be a friend or refuse.Vito oversees a business founded on gambling, bootlegging, prostitution, and union corruption, but he is known as a kind, generous man who lives by a strict moral code of loyalty to friends and, above all, family.

Who is the oldest Corleone son : Santino “Sonny
Santino "Sonny" Corleone

He is the oldest son of the Vito and Carmela Corleone. He has two brothers, Fredo and Michael, and a sister, Connie.

Did Michael regret killing Fredo

He is also mentioned many times throughout the film; the dialogue makes it clear that Michael is tormented with guilt over ordering his brother's death, and that it has alienated him from his ex-wife, Kay (Diane Keaton), and his son, Anthony (Franc D'Ambrosio), both of whom know the truth about Fredo's death.

Was Sonny a bad don : According to Vito, Sonny never had the makings of a good Don, as Sonny was prone to violent outbursts and was a reactive person rather than a strategist.

In the novel

Barzini heads one of New York's Five Families, and is the second most powerful Mafia don in the country after Vito Corleone.

However, Mario only used the word "love" for Michael twice–that he "loved" Kay and "loved his father". Kay was his dream girl. Al Pacino said that Michael loved Kay from the beginning.

Who was most loyal to Don Corleone

Luca Brasi is Don Vito Corleone's personal enforcer and the only man Vito himself fears. While slow-witted and brutish, Brasi is fiercely loyal with a reputation as a savage and remorseless killer.In reference to Fredo Corleone being the weaker and less intelligent of his brothers, the term "Fredo" has come to refer to a weak member of a group, especially one of a number of siblings in a family, regardless of ethnicity.In the novel, Fredo's primary weakness is his womanizing, a habit he develops after moving to Las Vegas and which earns his father's disfavor. In the films, Fredo's feelings of personal inadequacy and his inability to act effectively on his own behalf are character flaws leading to his demise.

Death. Fredo, moments before his death at Lake Tahoe. Upon their mother's death, and at the urging of their sister Connie, Michael relented toward Fredo and seemingly offered reconciliation. However, it was only a deception to draw Fredo in so as to have him murdered by Al Neri.

Why did Sonny get killed : In the late summer of 1948, Sonny Corleone was lured into a trap and was killed at the Jones Beach Causeway by Barzini family hitmen in order to avenge Carlo. The hit was engineered by Emilio Barzini after Carlo, angered at the loss of his income and at the fact that Sonny had beaten him, helped set it up.

Did Vito think Sonny was a bad don : Vito summarily impressed upon Sonny that he must be "the rapier, not the club". Though he had his apprehensions about his quick-tempered son, Vito planned for Sonny to eventually take over the family business.

Who kills Clemenza

the Rosato Brothers
Most noteworthy, the novel depicts Clemenza's fatal heart attack (mentioned in The Godfather Part II), and the many conspiracy theories that he had actually been murdered by the Rosato Brothers, former Corleone soldiers who had formed their own gang after a dispute over the future of the family.

The Godfather

Fredo was seen as the weakest and least intelligent of the Corleone men, and thus his father gave him only its unimportant businesses to run. When his father was shot by thugs working for drug kingpin Virgil Sollozzo, Fredo panicked and was unable to return fire, dropping his gun in the process.By The Godfather Part II, Kay has decided that Michael is a cold, distant, inattentive husband and father, but only after an attempt is made on his life in the family home does she resolve to rebel against him. At first, Kay's rebellion is silent and private: she aborts the child she is carrying.

Who did Michael really love : Katherine "Kay" Michelson (née Adams), formerly Kay Corleone, was the long-term girlfriend, then second wife and soulmate, of Michael Corleone. She is a schoolteacher by profession and the mother of Anthony and Mary Corleone.