The graphic above, from The Washington Post, shows the cuts people in different brackets would get under the two plans. As you can see, the big difference is that millionaires do much, much better under the Republican plan. The standard defense for that plan—which might otherwise just look like a huge gift to the most fortunate among us at the expense of the public good—is that lots of these high earners are, in fact, small businesses owners. That's debatable, to say the least.
Letting rates jump back up to Clinton-era levels for high earners, by the way, would reduce the deficit by $36.6 billion.