I'm going all in on Angular, even building a big open source project around it (http://ionicframework.com/). What really drew me in was hearing from developers that were using it at big, slow companies for entire teams building production apps.
Officially adopting a technology like that is pretty rare, and I guessed Angular had started to achieve a level of adoption that would make it the most worthwhile to invest in.
I think it may also be useful to pass this post around too, for people who are browsing this thread. Took me some clicking around to find the right level of explanation (for me) of what ionic does.
Ionic is pretty darn cool! We are building our customer facing app around it and it has made developing apps for smartphones a breeze. The funny thing is, we use the MEAN stack for the server side component so essentially, our entire dev stack is HTML5, CSS and Javascript :D
At my place of work (large, slow) Ember is starting to get widely used. "Google uses/supports it" is instant justification for using it to any layer of management, and I think that's the source of its success. (At least where I'm working people are afraid of using Ember because it's harder to explain/justify to the suits.)
Likewise, I expect at some point we'll be using node.js (probably over Rails/Django) because it's a lot more obvious to 'management' that it's used by large organizations.
Officially adopting a technology like that is pretty rare, and I guessed Angular had started to achieve a level of adoption that would make it the most worthwhile to invest in.
I also wrote more about how I think it's going to be huge, which I admit sounds best if you already love angular :) http://ionicframework.com/blog/angularjs-will-be-huge/