Onto Round 2 of Season One. There will be six matches. All the summaries are from tvrage.com
Season One - Round 2 - Match 4
113. Hearts and Minds
When Locke learns that Boone wants to share their "secret" with Shannon, Locke decides to teach him a lesson. This leads to Shannon's life being placed in what seems like peril. Boone and Shannon's dark past is revealed in a shocking backstory that recalls their relationship right before the plane crash and presages the return of the beast. Kate, who has become a confidante to the soft-spoken Sun, is puzzled by Sun's mysterious behavior and the revelation that she can speak English. A hungry Hurley must convince Jin to share his fish by making up for offending Jin by rejecting his offer of raw fish early on, or he'll continue to suffer digestive problems from the limited island diet.
Kate and Sawyer divulge dark secrets to each other while tracking a renegade boar that Sawyer swears is purposely harassing him. Hurley and Sayid worry that Charlie is losing it after facing a brush with death and killing Ethan with 6 bullets to the chest. A shocking prior connection between Sawyer and Jack is revealed in a flashback which shows Sawyer meeting Jack's father in a bar.
Season One - Round 2 - Match 5
When Hurley becomes obsessed with the French woman and heads into the jungle to find her, Jack, Sayid and Charlie have no choice but to follow. Meanwhile, Locke asks Claire to help build a mysterious item, which is later revealed to be a cradle for Claire's baby. Hurley flashes back to the hugely life-altering experience he had before boarding the plane. He wins the lottery - the number-one thing Americans dream about - but it ends up being the worst thing that could have happened to him. The winning numbers, and their source, were apparently cursed and have brought harm to everyone Hurley loves. We learn some of the spooky story behind the numbers and their connection to the island.
119. Deus Ex Machina
Locke thinks he's being sent a sign on how to get the hatch open, and he and Boone venture inland. Locke begins to have difficulties with walking as he and Boone try to find a way into the hatch. Jack is reluctant to offer assistance when Sawyer begins to experience excruciating headaches and needs glasses. In this episode we learn more about Locke's shocking and tragic encounter with his scheming biological parents. Lastly, as Locke confronts his troubled past and struggles to open the hatch, Boone is seriously injured after an accident involving a plane that the pair found in the forest.
Season One - Round 2 - Match 6
122. Born to Run
Jack suspects foul play when Michael becomes violently ill while building the raft. Suspects include Sawyer and Kate, who compete for the last seat on the raft and do anything possible to prevent each other from getting it. Meanwhile, a secret from Kate's past is revealed to the other survivors on the island -- she is a runaway fugitive. The mysterious hatch is shown to Jack, who sides with Locke over Sayid in favor of opening it. Walt warns Locke not to open the hatch. Walt also admits to his father Michael that he burned the raft the first time, and changes his mind about leaving the island once he realizes Locke's plan for the hatch. Lastly, flashbacks of Kate's past reveal happier times with the "love of her life," Tom, prior to his death and a visit to her ill mother.
124. Exodus (Part 2)
The castaways who make it onto the raft are surprised at sea by something that unexpectedly happens -- they make their first contact with "others" out at sea, but meet disastrous results. Meanwhile, remaining islanders attempt to blow open the hatch that's in the forest, but this proves to be more difficult than expected. Another survivor on the island dies. Visiting French woman Danielle Rousseau becomes a threat to Claire's infant son as she decides to kidnap him and bring him into the woods for "the others" to have in order to save the rest. Lastly, flashbacks show us all the survivors in the moments before the doomed flight took off.
My vote goes to 116, 119 & 124. May the Best Episode Win!