Hillary Clinton would mop the floor with Ben Carson. It would be a blow out.
As for Obama policies being on play in 2016, that would be the case, except for the GOP elites want to run Bush and just by having that name in the primary race, even if he don't become nominee, is going to bring back the whole Bush-era resentments, and much more people don't like Bush than Obama. Plus with Hillary, more people are going to remember her for Bill rather than Obama. Many people do view Bill's presidency as favorable especially compared to the trainwreck of Bush and Obama.
Kasich is relatively unknown, but if you can convince him to run in the primary I think he'd become popular fast and if he got the nomination, he is a heck of a debater and has a great record. I think he is the only one from the OP list that could potentially beat Hillary, but even that would be very close either way.
Your assessment of Hillary and Carson is pure speculation..........no more........Hillary is her own worst enemy in a campaign as shown when Obama defeated her.
If Jeb wins the nomination, yes, the Bush eras would become cannon fodder for the press...........but that will not stop the Obama policies from being front and center as well........I think people will remember her for her term as Sect. of State also. Lots of bad stuff there..........
"WHAT DOES IT MATTER NOW?" (goodness)
Yes, they will remember her with Bill's Presidency..............and her complete disaster at Hillary-care..........during his first term.........as for how Bill rates..............the left will love him no matter what...........(except for that wee small pause in the love fest when Hillary was running against Obama), and the right will never love him..........so that's a wash.
She has her own baggage.............going all the way back to White Water and "I ain't no trailer park trash woman....."
In my opinion, you are WAY overestimating Hillary................WAY overestimating..........but if you want to christen her, by all means go ahead and do.............the next Liberal Superstar!
Whoever the Repubs run if Hillary is the Dems choice.........the race will come down to less than 5 points one way or the other.
If the Repubs actually FIND a worthy candidate, then no matter who the Dems run.......the margin of victory could easily exceed 10 points........the delima for the Repubs is WHO is that Candidate? I'm not 100% sold on any of the ones out front for sure........
Romney, Bush, and what's his name from N.J. Not Rand Paul, (can't remember the whole list right now..........)
anyway....................I'll wait and see who comes out as the Repubs nominee, and then begin to investigate.