There are really only four candidates for President at this point: GOP front-runner Jeb Bush and his main rival, Scott Walker. Then, there is Democratic front-runner Hillary Clinton and her main rival, Bernie Sanders. The rest of this field is a joke, a bunch of egomaniacs who can't help themselves like kids in a candy store.
With the Democratic side I agree, with the Republican side I cannot confidently rule out a Rubio, Carson, Paul, Cruz, or Huckabee nomination. If one of Bush/Walker/Rubio implodes, there could be a big bounce for Kasich, Perry, or Christie.