[camus]

AngularJS is great ( my first app every with Angular : http://paraiso-flickr-search.herokuapp.com AngularJS forces developpers into separation of concerns , DI , which are good things , but until one understands why they are good , one will not like AngularJS.

Backbone is in my opinion more a library ( like jQuery ) than a framework. it doesnt force people doing anything , it provides helpers and conveniant "classes" to work with.

But it doesnt solve most of the problems regarding app architecture. AngularJS solves app architecturing problems in a elegant declarative way ( like Flex before it ).

[tcgv]

AngularJS solves app architecturing problems in a elegant declarative way

Actually BackboneJS praises itself for not doing that:

It doesn't depend on stuffing application logic into your HTML. There's no embedded JavaScript, template logic, or binding hookup code in data- or ng- attributes, and no need to invent your own HTML tags. [1]

[1] http://backbonejs.org/#FAQ-why-backbone

[camus]

yet one still needs to solve these problems somehow...