I don't care where you fall on the Sanders/Clinton divide, but this recent polling should be a wake-up call.
My opinion, based on this polling is that Sanders is a much better candidate going into this current political cycle. No matter if you are feeling the Bern or with Hillary, the stark fact is that Clinton has enormous baggage going into the General. Whether true or not true, her many "scandals" and "mis-statements" have created a situation where she has an abysmal trust-worthy rating. While she is very popular among Democrats, but she is not outside of the Party. What is her stratagem going to be for the General? What about the Democratic Party? It's not Democrats and the rest of the Left (largely) that are the issue here. It's the other 2/3 of the population.
So here is my message to the politically cynical and the pragmatic among those of us who haven't voted yet; If you don't want Trump, vote for Sanders.