Even if he doesn't win, more than one candidate forces a debate and will keep Hillary from sneaking in under the radar. She'll be forced to go on the record on things she probably would rather not.
Don't ever think, that Osama-Obama is going to be the one who will smoke out Herself, the Cold and Joyless, on ANY position.
Her strength lies in the concealment of any serious examination of whatever it is that Herself, the Cold and Joyless, holds to be an eternal truth.
Including the ever-important Gonad Lock-Box. Osama-Obama has already been advised of its existence.