I really liked unbreakable and just like the sixth sense it was the last scene that made the movie..
If I could change one thing about Unbreakable, it would be to have the last scene from the movie freeze, and then morph into a panel from a comic book. That would fit the style to a "T".
I agree on the "Sixth Sense" that the last scene made the movie. However, in "Unbreakable", I seem to recall counting three "last scenes," at least in the theatrical version I saw. Or at least three separate scenes that would explain much of what had happened within the rest of the picture.
Maybe I'm being picky, but things like that really spoil it for me.