Well, I've made clear that he's (pretty easily) my least favorite choice in the Republican field. I suppose some part of that has to do with temperament and all that. But I tend to follow the Buckley rule in casting votes -- which means that it mostly comes down to ideology, buttressed by some realistic assessment of a candidate's electability. So my primary reason for disfavoring Trump is that he's, by a healthy margin, the least conservative candidate seeking the Republican nomination. I think he's a huge question mark on the question of electability. At one time, I'd have said that he doesn't stand a prayer. But he's defied the CW enough by now that I've stopped trying to make predictions about what he can or can't do.
Still, if I'm offered a choice between Trump and Hillary, I'll vote for Trump -- for much the same reason that I oppose him in the primary: I'd say he's the more conservative of those two choices. Twenty02, BTW, doesn't agree with this...he thinks Trump is actually to Hillary's left. I don't think I agree with that -- but I could see why somebody would say that (his past support for a wealth tax and single-payer healthcare, and his present support for a tariff on Chinese imports are clearly positions that are to Hillary's left).
If Trump were still Trump (in terms of temperament and all that) but he was running a similarly populist campaign with more of a left-wing bent and he became the Democratic nominee matched up against, say, Rand Paul or Marco Rubio or Ted Cruz, are you saying you'd vote for the guys on the right....just because Trump's such a blowhard charlatan? If so, I'd say that's kind of short-sighted.
I mean, I said I'd have to hold my nose to vote for him. What more do you want? I can't very well vote for lefties -- not, anyway, for the presidency.