I'll start by saying the following,
Jacks son david mothered by juliet, then split up divorced, Real locke says jack has no sun,
Sawyer, kate, penny, DIDN'T DIE! So how come they are in thechurch? ( also miles, lapidas (the pilot), richard alpert survive
Jack being teleported out the light room, still injured and dies with vincent where he first lands on the island , if he was jacobs replacement the water in theory should of healed him, like in the temple ?
how did hurley/ desmond track down shannon n her bro, (boone was it ?)
why jack gets all the memories from an empty coffin, should of been kate as she sparked the first.
why is daniel a pianist not a scientist ?
why wasn't charles widmore at the concert ?
If the real lock could of walked in the atl from hospital why would he still use the wheel chair in the taxi to get to the church?
Also when widmore put one bomb on the plane which was sooo obivous, surely he would of hidden a second ? just in case
How would lapidas survive the sub sploding, n beingout for longer than the others n not the sub captian ?