Vue has HTML templates like Angular and virtual DOM like React. It is faster than both of them. It has a smaller file size than both of them. It has a clever single file component concept that makes developing components much easier. It uses a one-way data flow concept like React+Flux. Vue even has it's own competitor to redux/mobX called Vuex, and what makes it easier is that Vue is cognizant of Vuex's existence. There are really solid dev tools for Chrome as well (Vue and Vuex are aware of the dev tools as well).
I run a dev meetup, and I had planned to give a talk there on Angular 2. I even gave talks on JS tooling a year ago and TS last summer in preparation. Instead, I gave a talk on Vue this month, and people loved it. Here are the slides if you want to check it out (there are even embedded Vue apps!): https://azurelogic.github.io/vue-js-2.x-talk/#/