1. The Dinner at Miss Havisham's:
* Who is present: Pip, Estella, Miss Havisham, and a group of other guests
* What is revealed: This dinner is more about what is *not* revealed than what is. It's a highly orchestrated event showcasing Miss Havisham's bitterness and Estella's cold beauty. It's here that Pip's infatuation with Estella intensifies, and we see the beginning of his emotional turmoil. However, there are no concrete revelations about Pip's true benefactor or Miss Havisham's past.
2. The Dinner at the Jolly Bargeman:
* Who is present: Pip, Joe, and his sister, Mrs. Joe
* What is revealed: This is the pivotal dinner where Pip receives the earth-shattering news about his benefactor. His "expectations" are revealed to come from the convict Magwitch, whom he had helped in the past. This dinner throws Pip's life into a whirlwind of confusion and shame, forcing him to confront the truth about his past and his social standing.
Therefore, it's the dinner at the Jolly Bargeman that holds the most significant revelations in the novel. This dinner marks a turning point for Pip, as he realizes the true source of his wealth and the impact it will have on his life.