OK, I'm not really feeling the Bern. But of the three, he's the least dangerous. Hillary is a proven liar (yeah, I know, she's a politician, lying is not unexpected) and flatly incompetent and maybe a soon to be convicted criminal. I will not vote for her just to have a female President. I personally would like for the USA to have a female president, but there are plenty of other, more competent women around, and hopefully one of them will be able to fulfill that laudable goal.
And Donald (Hey, I'm on first name basis with these guys) is dangerously unpredictable, dangerous because (among a myriad of other considerations, which also include being a soon to be convict) he will have his hand on the nuclear button. What if Putin makes fun of his hair, or his predilection for Russian women? Boom! That's what.
His ego is a ticking time bomb. And he has nukes.
And as he openly states, he's a business man. And the focus of his entire life has been to figure out how to manage events so that his business interests come out on top. We should not expect him to reverse a lifetime of focus on himself. He cannot be relied upon as president to change now, and not put his business interests over the interests of the country. The odds are that he owns a wall building company.
I see old Bern, hopefully restrained by a Republican Congress and Senate, and even being the socialist that he is, as being the least likely to really screw the national pooch.