This comment seems to sum it up well:

Per Windbag, on Democratic candidates:

If you take what they say at face value, there isn’t much difference between them. Speculating as to what they’ll actually do…Biden or Hillary would probably do the least damage. They both want a return to the good ol’ days, when you could ply your trade of graft and corruption. The system that maximizes profit for that business model is good ol’ fashioned crony capitalism.

If Biden snags the nomination, he’ll backpedal every far left promise he made immediately. He can always claim that his meds were off and that he doesn’t even remember promising free pony rides for transgendered puppies and who would doubt it? Hillary never promised that crap to begin with, so no walk back necessary. The rest of the pack all want to lunge leftward as far as possible.

But, picking which Dem you’d want to see elected is like picking which cancer you want your grandmother to have, when you also have the option of cancer-free.