Anyone who doesn't answer "all of them" at this point is a total hack.
The national environment in 2016 will be much more important in developing the race than the quality of the candidates, and it is extremely premature to rule any 2016 candidate out of consideration. In a 1932 or 2008-esque environment, Hillary could get stomped by any Republican.
I agree with the idea, that Hillary goes down; Jeb has the strongest chance; he's seen as the least threatening.
Santorum & Huckabee are retreads.
Paul, please!
Scott Walker, Maybe!
Chris Christie, motor mouth
Marco Rubio, ?
Cruz, spoilt brat!
Perry, you gotta be serious, right?
Jindal, joker of the pack!
Carson, yeah right!...that flavor of the month.
Pence, you are serious!
Graham, auditioning for Veep!