Lost questions I want answered - in the Lost finale

After 6 seasons, Lost is finally calling it quits - and that while it's still ahead, while its ratings continue to skyrocket, and while it remains one of the most popular shows on TV with a cult following that rivals TV legends like Star Trek.  Expect slam-dunk ratings for the Lost finale.

More than just a TV hit, prestigious publications like Time Magazine have labeled it a groundbreaker, a show that broke all boundaries and revolutionzed the industry with an idea - namely that science-fiction, serials, mythology, psychology, and iconic references to other popular phenomenon can draw in a huge number of *thinking* audience week in and week out.

Honestly, after season 3, Lost lost me. I couldn't undertsand anymore why there were flash-forwards or how some of the Oceania 12 finally were rescued and that, a few months later, they felt the compulsion to go back because it "was their destiny."  I also didn' have a clue as to why the island disappeared and why creepy Ben felt it a duty to hurl the entire island down a time-space continuum.

But one thing I did notice is that, everytime I caught the show on cable, I'd be drawn in by the questions that these impossible situations posed.  And that, no matter how long a time had transpired since I saw my last episode, the characters still mattered to me.  Seriously.  More important than the origin of the island, I wanted to know who Kate would end up with; if the Korean couple would reunite; would Sawyer finally escape his past;  and who would finally win as leader of the castaways, John or Jack? 

The characters stranded on that mysterious island were ensnared in a web of past bad decisions - and they had to find redemption.  And that was the heart of the show, not the Dharma Group, or Ben's Wizard-of-Oz shenanigans.

Still, having said that, there are questions I'd like the producers to answer during the Lost finale:

1.   Why exactly did the Dharma Group settle on the island?  What experiemnts were they conducting?
2.   Is the island even vaguely alive?  How did they choose the 'castaways' who crashed on its shores?
3.  What's this thing about Jacob and his twin?
4.  Why did everyone had to go back to their past?
5.  Why was it important for the main charaters to see glimpses of their alternate realities?

And of course, who lives, who dies, and who finally goes home?

And what happens to that freaking island???