The last of the season..who is your season 4 finale 'Hero of the Week'?
Jack Shepherd
Say what you will about Jack, he did keep his promise to get (most of) his people 'home' (despite it being a mistake in the long run), and he did save the life of Desmond. He also had the decency to show up to Locke's funeral, and aside from Sayid, seems to be the O6 member who is the most willing to rectify his error(s) in the future.
Benjamin Linus
Ben bravely fought back his own personal grief and disappointment at being de-throned and saved the lives of the Losties and the island by moving said island through the vacuum created by the Casimir effect. Ben also defended Alex' honour by stabbing the taunting Keamy through the heart - an act that showed just how much he loved his only daughter. Future Ben is also co-ordinating the return to the island for the O6, whilst keeping them safe from people out to harm them. A heroic performance by the former leader of the Others.
Michael Dawson
Michael not only
sought redemption, but he gained it by having the brains to delay the detonation of Keamy's explosives. He may not be able to make-up for what happened to LuLu, but he saved many lives due to his determination and integrity.
WHO IS YOUR SEASON 4 HERO OF THE WEEK?