I will not do a comparison between Angular and other similar frameworks since I have not spent much time trying any other frameworks and would therefore not give you a good comparison (there are plenty of comparisons out there already). AngularJS does however take a nice approach to MV* design pattern. I know a lot of people like to define a framework into some category such as MVC, MVVM, MVP etc. However angular is indifferent. Igor Minar, one of the great writers of Angular recently posted on Google+ saying that he’d rather see great apps built than spend time arguing about what category to put the framework in. And thus declared the framework as MVW (Model-View-Whatever) meaning you can decide how you want to use it.
I would definitely say it’s a framework that’s worth researching. There are a lot of great resources available and I have listed a few below:
http://docs.angularjs.org/guide/ - AngularJS’s own developers guide
http://onehungrymind.com/ - A great blog full of examples and explanations
https://groups.google.com/forum/#!forum/angular - Official AngularJS Google group
http://angular-ui.github.com/ - A collection of jquery plugins usable in Angular with no changes.
http://builtwith.angularjs.org/ - Great examples of AngularJS applications
http://docs.angularjs.org/api/ - AngularJS API