Realistically.
Sanders has no chance for the Democratic nomination. Clinton has scared off everyone else. So it's Clinton.
Trump has no chance at the Republican nomination. If perchance he did get it, he would have no chance for the presidency. If some other Republican manages to get nominated they will have had to pass the Tea Party litmus test. That would place them too far right to get elected.
So it looks as if it's Clinton. While I don't like the lady or her husband, I have to admit she has the experience to make a good president. The 2 for the price of one is bullshit - I wish Bill would find a good whorehouse and drink himself to death.