I agree. I think our 3 best nominees would be
Cruz (cause he would really rev-up the base)
Trump (for the same reasons, plus he’d pull in a lot of in-the closet Reagan Democrats)
Walker (for the reasons you have outlined)
I think the 3 worst would be
Bush (cause he’d demoralize our base as bad or worse than Walker would demoralize theirs)
Graham (same reason)
Fiorina (as a former CEO she is a sitting duck to be absolutely destroyed in the same manner as Romney....think “everybody HP ever laid-off when she was in charge turning up in a Democrat ad”).
You ‘nailed’ it.