I played around with the demo of Stutter Edit. This is unique in that it is a playable live effect using any audio input or sample. These are then processed or transformed live by the "gestures" (presets) assigned across the keys of a MIDI keyboard or pad controller.
The other plugs mentioned are synth instruments that generate their own sounds, rather than effects on an audio input. You could do this with z3ta+ (it has a noise wave in the oscillator, try with patch "reduced swell"), Pentagon, or a few other synths with a little effort.
But the setup for Stutter Edit is the same as a vocoder such as VocalizerPro. You insert it as an effect on an audio track, then route a MIDI track to it to play it live. By playing the keyboard you "play" (trigger) the effects via MIDI as the original audio source is being processed. It does have a generator as well, to produce sweeping noises and such.
I guess it comes down to whether you need to produce effects during a live performance, or if you are content to edit your tracks in the studio. It's up to you how much time saving you wish to pay for.