Jeb Bush will beat her unless he dies from obesity first, then again Hillary's a fat cow too so maybe they'll both succumb.
Think about it.
Jeb Bush will have:
-The white male vote
-The "Hispanic Mixed Race Kids + Wife Cred" which means he will have high Hispanic vote especially among Hispanic men wanting to "White it up"
-Married white women
Hillary on the other hand will have:
-Mediocre to low black male turnout
-Mediocre to low Hispanic male turnout
-Mediocre married white women turnout
-Low white male turnout
-High single female turnout
In my mind, that's a Jeb Bush win. Jeb Bush's voter blocs will turnout in full force whereas Hillary will basically only have one column of energized support from Single women. I don't see that beating several strong GOP voting blocs.
Unless the white gay faction can somehow infuse enough cash, influence and fanaticism into Hillary's campaign, she's doomed.