Come again?
Rubio would be the strongest candidate in the general but he won't make it there. The Jeb W. Romney campaign will salt the earth under his feet. And from a conviction standpoint it's difficult to be impressed. Rubio has made one big legislative effort in his career and he abandoned it immediately when the winds changed.
Ted Cruz is an ideologue who has nothing but contempt for the intelligence of his supporters. Unfortunately, that seems to be working for him. It says quite a bit more about the far right than it does about ol' Ted.
Oh, good lord. "Challenging the status quo" is probably the saddest spin that I've seen of a complete failure of a tenure that resulted in the firing of more than 30,000 people, a golden parachute for Carly, and a giant jump in stock prices when the market saw that she had been fired.
If you want to believe that she'd be a good politician (and not just an anti-Hillary prop) that's fine . . . but you'd do well to not base it on her career in the private sector.