Some more thought on the difference between Trump's and Hillary's speech: this reflects a difference in strategy corresponding to the perceived difference in strength and flaws between the two of them.
One of Hillary's biggest problems is that she has been perceived either as a wicked witch by the her critics, or a too careerist woman who is all about work and ambition and not much about personal life, by non-critics. So she wants to show a more personal side of her, and add warmth to her image. Bill Clinton did a relatively decent job at humanizing her, by talking about a (probably fabricated) boy-meets-girl story. So did Chelsea, to a lesser extent. And that's also why there is so little policy in her speech. It's a good strategy. The problem is in the execution. Hillary herself has to be the most important step in this strategy, but her delivery failed. The more you see Hillary in person, the less you are convinced that she's a warm, decent normal human being.
On the other hand, one of Trump's biggest problems is that he is perceived as inexperienced, light in policy, lacking the knowledge needed to be president. So in his speech he talked a lot about policy. He's also perceived as a wild card, a clown, a crazy, unstable, mercurial, capricious buffoon, so in his speech he had to assume a solemn, steady, imposing, relentless and unyielding stature. And he did this well. The perceived scariness is more or less taken care of by his family.
One thing to note is that Trump's strategy is not to make himself more relatable. It's pretty difficult for an average American family to relate to Trump's family, to his all-star children, all good-looking, tall, well-spoken, accomplished, dazzling with confidence. He's not a good dad, but a great dad.
His message is not that he's also like you, but that he's what you - the ordinary working man - would want to be. He's your dream version of yourself, what you can be. He's the personification of the American dream. He's also that great man who understands your suffering and sides with you - the little guy; an incredible nigh-superhuman force with indomitable can-do spirit who has come to America's rescue (supposedly, to repay a country that has been so good to him). This is best reflected in Don Jr's statement that "For My Father, Impossible Is Just the Starting Point" and in Eric's "He's running for you!". This is also reflected in his unfortunate claim that "I alone can fix it". His children all talked about incredible he was.
Trump was never supposed to be a normal person. He's an ultra-entrepreneurial larger-than-life persona. He's, in a word, YUGE. This has been his branding strategy his whole life -- everything you see of Trump in public tells you this. And he's not supposed to tell you his more human, softer side. You're supposed to discover it by yourself, and to be pleasantly surprised by your finding. Unlike Hillary, this contrast between what he really is and what he tells you of himself is not a frustrating distasteful one. It likely works in his favor.
