Choose a fav confirm style--E, C, or P?

confirm-styles.js

/* E */
// Event style (current implementation)
var confirm = notifier.confirm('Are you sure?');
this.listenTo(confirm, 'confirm', function(){
  // do something
});
this.listenTo(confirm, 'cancel', function(){
  // recover
});


/* C */
// Callback style
notifier.confirm('Are you sure?', {
  confirm: function(){
    // do something
  },
  cancel: function(){
    // recover
  }
});



/* P */
// Promise style
notifier.confirm('Are you sure?').then(
  function confirmed(){
    // do something
  },
  function cancelled(){
    // recover
  }
);