All recognized AngularJS controllers are offered in code completion, as shown below.
In other words, code completion works better in finding AngularJS controllers.
Another improvement is in the "Go To Declaration" feature. When you click Ctrl+Mouse over the name of a controller inside an NG-controller directive, you will be navigated to the related controller declaration.
Other awesome AngularJS features, already in NetBeans IDE 7.4: