What are the best client-side JavaScript application frameworks?

AngularJS is a framework, not a JavaScript library like jQuery. Find out here the simplest way to view the difference between AngularJS and iQuery. This article provides the features of and a point-by-point comparison between jQuery and AngularJS.
AngularJS is definitely better than jQuery in many facets. AngularJS is Very Strong Community Backing and Code Style is very declarative.
While compare with jQuery, AngularJS is the best Hybrid Framework to develop Mobile Applications for your business.