Most enjoyable thing for me (and great in very common situations) in Angular.js is the two-way databinding and the "ng-repeat" thing. These things are easy and

Most enjoyable thing for me (and great in very common situations) in Angular.js is the two-way databinding and the "ng-repeat" thing. These things are easy and lie on the "flat" part of the S-shaped learning curve. Also that there is no templating system - I always disliked having to learn and use and debug another abstraction layer (Mustache/Handlebars or Razor with MVC etc.). The biggest "gotchas" with these frameworks will typically be the problem of having to wrap your head around a few new and unfamiliar concepts and syntax that take a while to "grok". (On the other hand, it's NOT difficult in a objective sense, like some advanced mathematics that not everyone is capable of doing, so, to anyone reading these JS framework-threads on HN, please end up encouraged to try them out yourself.) Learning one framework will greatly help your understanding of the other, so I'd say just pick one and decide later which one is "best".