I knew you would look...but seriously..
Look... Everyones GOin Nerd on these theories ..and to there advancement they're all great, and probably true...
black vs white, Jacob and the guy in the black shirt in the beginning, both wearing there colors to symbolize what they stand for, in any race, culture or religion, "Namaste" ..look it up. This show is Not about a culmination of religions, time travel, monsters, black and white, good and evil, love ..hate. friendships ..enemies. working together, breaking off. ignorance.. intelligents. ..so on.. so on ..so on. I already had an idea that Locke wasn't himself but i see that there referencing Jesus and the Crucifiction, coming back to life. ..he knew what had to be done. and that was be killed.. only to become stronger. I believe that was "Devil" or Dark telling "Jesus" or Light in the beggining.. "you know i want to kill you right" but they will never kill each other. No matter how much time travel u do or scientific stuff u do.. it all circles back around on the Rollercoaster of Life. Jacob knew that he was going to be killed thats why he had to have the Losties Come ba! ck to the island.. he knew that the "Dark" would get that lupe-hole and find him via LOCKE and then kill him.. but he had to provoke Ben so ben could do it, or else Ben would not have stabbed him. "DArk" thinkin he won was only helping JACOB ..to soon resurect and come back stronger.. i believe he will go to LA and get the Losties and bring them back to fight for him in the war.. Now who ever chooses sides ..is up to them because of CHOICE.
..BUT! ....
..all mysteries aside... I think you need to step back and look at the REAL Big Picture...
Christian... Again my own fun, silly, YET serious Theory is that Everyone probably is not even on the Island at all but they are just people in the everyday lives of the "Shepperd" Family ..maybe they are friends, lovers, workers, ...who are involved in this "GREAT STORY" told by Christian who is tryin to pass it on to Jack, who i believe is why he is the main character. Jack said to Kate once my Father was a great story teller, after he was done reading to Kate's kid while he was putting him in bed.
...This is just a Great Story told by the "SHEPPERD FAMILY" of good and evil -LOST