I think you're gonna like Aurelia[1]. It's badass compared to Angular 2, React & Polymer. You get this really, really nice feeling of writing pure Javascript. It's smaller than Angular, strictly follows Javascript standards which is soooo nice. No

  {{bindingVariable}}

but instead:

  ${bindingVariable} // Just like in Javascript template strings!

Binding? Sure:

  <input type="text" value.bind="variable">

Two-way? Of course:

  <input type="text" value.two-way="variable">

One time? Yep:

  <input type="text" value.one-time="variable">

The templating is so simple, as it follows the APIs as well, for example - how would you bind markdown to the innerHTML of an element? Well, just pass the variable through a ValueConverter in your bind:

  <div inner-html.bind="variable | markdown">

It is also pluggable. You can replace almost everything in Aurelia with your own implementation very easily.

[1] - http://aurelia.io/

EDIT: Added a little more to explain my reasoning.