One thing we're looking forward to with the Galaxy S6 and Galaxy S6 edge is the newly toned down TouchWiz UI that will hopefully be much more intuitive and more responsive than previous versions of Samsung's Android overlay. Some new pictures posted by AndroidCentral of the Galaxy S5 and the Galaxy S6 show how Samsung has been slowly working to refine TouchWiz to give it a cleaner look that fits in better with Google's Material Design in Android 5.0 Lollipop.
Side-by-side pics show how Samsung is cleaning up TouchWiz one pixel at a time