Unless you overhaul congress, you can forget about Bernie Sanders doing anything he is says he will do. This is the problem I have with Bernie. What he is presenting is unrealistic and its pandering for votes. You only have to look at Obama terms to see how what you want to do and what you can do will always be determined by what can pass the house and Senate.
People may not like Hilary but you know something, she is grounded and understand the office and what can be accomplished. Things will get done with Hilary because she knows how to work the political lines and she is not shy going to both sides to make deals. If a president cannot make deals on both Dems and Rebs then a president will not get anything done. This is one of the major problems with Obama is that he would not deal and thus a lot of things he wanted to do got stumped.
Trump will have the same problems. He alienate a lot of people on both sides of the political front. A lot of the things he says will never get done just like Bernie Sanders and thus they are just political ploys to win votes. With the House and Senate controlled by the Republican party, picking a true Republican probably is the only way you would see something get done unless you are opposed to what they want to do.
IMHO only Hilary or Cruz probably have a chance to really do anything when in office but the issue is do you want what they can do.