Jeb wasn't a particularly great choice for them either thanks to the Bush name being trash. He's better than Trump, and would have given Hillary an even race, but Rubio or Walker or Kasich would probably be leading her right now.
I think the fact that Jeb and Hillary were the clear choices of party elites going into the primary really shows how party insiders don't really care about electability as much as they say they do. It's more about who had the most connections than who had the best chance of winning the general.
I personally like Hillary a lot more than Biden, but Biden really would have a much easier time in the general. Doesn't matter if Hillary's untrustworthiness is well deserved, or a result of an unfair decade long targeted campaign, or a result of sexism, that perception is there and it can't be undone.
I think people are way too soft on Biden. His general likability and approval are functions of the fact he just doesn't do much. This guy has had two failed presidential campaigns. He's a genuinely poor candidate, and I struggle to think how the Bernie-left would receive someone to the right of Hillary.
I like Joe and I think most people like Joe. I think the minute he steps into the foray, way fewer people like Joe. Now, obviously no one likes Hillary. But she comes with the network and the machine (at least!) to mitigate that. Biden had time to decide if he was going to run for president and he did nothing. I think it's clear that people who think he elected not to run because of his son are romanticizing his general poor candidacy.
I think this is sort of a lost year for analyzing the Democratic bench's potential. I don't think anyone wanted to step in Hillary's way. I would have liked to see how someone like Kristen Gillibrand would poll against someone like Marco Rubio.