Jeb Bush has no chance whatsoever of getting enough Repub support to run for Prez. Same goes for Christie. Hell, even I would work against either of those two getting the nomination.
If the Repub "powers that be" don't see that, they're dumber than even I thought they were.
OTOH, this could all just be a push by the "media" to get a lame, weak, loser Repub as the candidate for Hitlery to pulverize in 2016.
Rubio could be good if he can get his conservative credentials together after he has gathered enough "minority" support, which is what I suspect he is doing in these early stages. He needs to get enough support at the grass roots level to run for national office and then turn more conservative after taking office.
If he can get enough Hispanics to realize that conservative policies will actually help them, he could turn the tide against them voting Dem so much.