so i guess widmore is the bad guy....
It looks like the smoke monster disguised as locke is a good guy. If what he said to jack about disguising as his father in the first season to help him find water then he is good...very cool episode. Everyone was reunited together for first time since what? season 5? damn!
Why do you think Locke is the good guy?? He helped Jack find water, because he needs him to get off the island. He also killed all those people. Obviously he's bad. Widmore: possibly good, but I'm not sure.
I think one of the things they have been hinting at throughout the series is that, even though most people perceive things as only good or evil (black or white), free will gives humans the unique opportunity to act on both sides.
Think about Sayid - throughout the show, his character has been with the good guys (815 survivors, O6, etc.), but we know that he has a past that consists of many evil deeds. Once he gets off the Island with the O6, he starts working with Habitat for Humanity to build houses for the homeless - one of the most selfless occupations the writers could possibly come up with. Sayid, like the other characters, is given a series of
choices, and make decisions based on his own
free will - some of these decisions are black, some are white. There is no absolute good or evil.
Other Examples:
Jack is a good guy, perhaps
the good guy, but he is responsible for a number of deathsm and his decisions have often led to great suffering.
Kate is a good guy in the show, she is helpful, smart, and kind-natured (delivering Claire's baby). But she murdered her father in cold blood.
Sawyer is a con man and a murderer, but it is arguably his actions that have kept the survivors alive time and time-again (integrating with the DI, planning to leave on the sub).
Michael saved his son from the Island, but had to kill two people in the process. Since then, he bought some time on the Freighter so that other people could leave safely (Dying in the process), and he has guided Hurley after death to make sure MiB doesn't take advantage of the survivors.
This leads us to the Island. The Island has been around for so long because it is impossible to prove if humanity is good or evil, because it is neither - it's a shade of grey. Since human actions are really what drive the events on the Island, the constant back and forth of good and evil keeps things at a standstill...until Jacob died.
So we can't really discuss (with any certainty) who is good and who is evil. We have seen so many characters act on both sides. The FST complicates this further - take a character like Ben who is mostly evil on the Island, but seems totally good in the FST. He is the same person, but his decisions, as a free-willed human, have dictated his path in two totally different ways.