I'm not necessarily set on Angular but I've used Backbone professionally for over a year but it's out of the question now. The other one is emberjs which I have

I'm not necessarily set on Angular but I've used Backbone professionally for over a year but it's out of the question now. The other one is emberjs which I haven't played much with but all the literature on the internet that I can find supports angular over ember. I've also reviewed the ember docs and they make several decisions that I don't agree with. I'm open to other client frameworks but if the Firebase+Angular combo works out it seems to me like the best foundation.