EmberJS hands down and the reason is quite simple for me.
There are many ways to write an 'angular app' but really only one correct way to write an 'ember app'.
When you begin work on an existing Ember App do you want there to be conventions, or just some gun-ho cowboy stuff? It was a non-decision for me, and I went with Ember.
Remember: Rails caught on like wild-fire because of it's mantra convention over configuration.
There are many ways to write an 'angular app' but really only one correct way to write an 'ember app'.
When you begin work on an existing Ember App do you want there to be conventions, or just some gun-ho cowboy stuff? It was a non-decision for me, and I went with Ember.
Remember: Rails caught on like wild-fire because of it's mantra convention over configuration.