When does having a 'Chosen One' work in fantasy?

[mmemoammmmmnmmng]

What makes a chosen one character work in one story and not another?

 

[indubidably]

someone special who has the power to defeat the enemy.

 

[MrCellophane]

Mythologist Joseph Campbell coined the term "hero quest" back in the 1940's, to describe the path followed by all the great heroes -- both ancient and modern. (Yes, that's the same Joseph Campbell that Bill Moyers interviewed extensively on the 1989 PBS special, "The Power of Myth.")

Let's face it, if the 'Chosen One' is not the hero, the story isn't going to work. Good characters require a character arc. More detail can be gained by reading the works of Joseph Campbell.

http://www.questcycles.com/hqcycle.html

Is the link to a Cliff's Notes version that might get you started in the right direction. I suggest that you read his works and then read the stories that you consider successes and how they relate to his findings. Then you might have a chance of creating something that appeals to a larger audience.