I would say Jeb Bush is highly unlikely to win the GOP nomination. He has no grass roots support to speak of. The conservative base will never go for him. He can raise and spend a billion dollars but if he does not get the votes he’s toast.
Jeb is likely a one debate pony. He will be eviscerated by the likes of Cruz, Paul, Perry and Walker in the first debate. His ideas on immigration and Common Core just beg for artillery fire.
Jeb won’t even be the GOP-E chosen one. Jeb has to gamble on Super Tuesday and/or the possible Southern Super Tuesday. By then, it’s likely an Establishment candidate will have emerged from the earlier contests in Iowa, New Hampshire and South Carolina where Bush will have been a non-player.
The early odds on favorite is Jeb for 2 reasons. 1st is he is extremely well connected to the beltway repubes. He’s gonna clean up on that money early and choke out the others. 2nd is he is perceived as being able to win FL easily. That is critical. There is almost no way for repubs to win white house without FL.