How will tonight's LOST stack up against other season finales?

Okay, after my last, rather hate-filled post about LOST, I promise to be nicer. I can't stay mad at you, LOST. Not this close to the end. Season finales are usually always good- they have to be, it's in their definitions. LOST finales in particular are very good at sending curveballs to us in their last moments. How will tonight's episode, the sixth season finale and series finale, rank among the others?

SEASON ONE:

What happened: Danielle Rousseau, the French woman, attacks Claire and steals her baby, hoping to make a trade with the Others, only to find them gone when she gets there. Locke, Jack, Kate, and Hurley successfully  blow open the hatch as a possible shelter from the Others. Michael, Walt, Jin, and Sawyer sail away on the raft. They are a found by a fishing boat and, thinking they've been rescued, celebrate. The Others on the boat steal Walt and shoot Sawyer before blowing up the raft.
WTF Factor: 6. Although everyone was a little disappointed they'd have to wait until next season to find out what was in the hatch, the event on the raft more than made up for it. "We're going to have to take the boy," can still send shivers up your spine. This was also our complete confirmation of Others on the island, and that they weren't the survivors' friends. However, compared to later episodes, this almost seems tame.

SEASON TWO:

What Happened: Michael, Jack, Hurley, Kate, and Sawyer are all captured by the Others and brought to a dock, where they discover Ben is their leader and that Michael has been working with the Others. Hurley is released. Sun, Jin, and Sayid use Desmond's sailboat to try and meet Jack, discovering the four-toed statue. Locke and Desmond are successful in preventing Eko from pressing the button in the hatch, but when they realized it was a mistake, Desmond is forced to use the failsafe key, causing the Island to emit a strong electromagnetic emission. This is noticed by scientists in the Arctic, who call their employer, Penelope Widmore, Desmond's lover.

WTF Factor: 6. There were some mighty odd things in this episode. The four-toed statue, the purple light, and most of all, the fantastic ending with Penny. But while everything was odd and interesting, it was not necessarily shocking.

SEASON THREE:

What happened: Charlie is taken captive by the Others in the Looking Glass station underwater while trying to turn off the jamming equipment. He is successful, contacts Penny, only to discover that the rescue boat they believe to be hers is not. Charlie is killed by a grenade blowing out the window to the underwater radio room, leading to the most tragic Sharpie writing on hands ever done. Naomi is stabbed in the back (literally) by Locke, who doesn't want rescue to come. We see Jack, fully bearded, struggle with substance abuse, only to discover that this is the 3 years after leaving the island.

WTF Factor: 9. Charlie death, while we were warned about it again and again by Desmond, was unexpectedly sad. The stabbing of Naomi sets up interesting battle lines between our survivors as they are torn apart by the belief of the goodness of those on the rescue boat. But what made this finale most successful was the flash-forward, which no one saw coming. The survivors would get off the island, but for some reason, it was very important for them to return. 

SEASON FOUR:

What Happened: A group of the survivors manage to get to the rescue boat, only for it to blow up in front of them. The Oceanic Six, as they would be known, manage to find Penelope Widmore's boat and use her lifeboat to make it to a small Pacific Island, where they are rescued. Ben is forced to move the Island using a donkey wheel, making it look like the rescue boat had disappeared and all hope was gone. In the future, Ben confronts Jack and tells him that they all need to return to the Island, including Locke, who is dead. 

WTF Factor: 4. This was a good episode, clearly, but nothing was especially shocking. We already knew the survivors would get off the island; perhaps the most shocking thing was the explosion of the rescue boat and the "death" of Jin and Kate taking custody of Aaron. Locke's death was also surprising but not entirely shocking- after all, there weren't many people that it could have been. Oh, and the Island moving thing. Yeah. That. How does Locke get off the Island? Maybe this episode was more shocking then one would think....

SEASON FIVE:

What Happened. I cried. Oh, in the show. We finally get to see Jacob's adversary, the Man in Black. We also see, off the Island, Jacob touching each of our remaining survivors sans one: Juliet, who is tragically killed while she, Kate, Jack, and Sawyer try to set off the hydrogen bomb and reset time to 2004. Juliet manages to hit the bomb with a rock and a white light is emitted, and every LOST fan twiddles their thumbs for nine months. We also see Jacob being killed by Ben under the orders of who we think is Locke but is actually the Smoke Monster/MiB.

WTF Factor: 8. This finale asked a lot of questions: Who is the MiB? Why does he want to kill Jacob? Why did Jacob touch some of the survivors? How did the MiB take Locke's form? Why does Sawyer hit on Kate when he had a fulfilling life in 1977 with Juliet? Why did Juliet have to die? Why? WHY?