Can you point me to a place that explains the differences between the layer slider and revolution slider? I don't know how to use them or best practices for them.
Those 2 sliders got basically different animations and options. If you want to learn more about both sliders, you should check them both (docs and demos):
Comments
http://codecanyon.net/item/slider-revolution-responsive-wordpress-plugin/2751380
http://codecanyon.net/item/layerslider-responsive-wordpress-slider-plugin-/1362246