Don't know what the difference is, but I have the Lippert 6 point auto level system on my FR Vengeance toy hauler. The ability to press one button, and have the camper perfectly level, is a godsend. You can also manually control front, left, right, rear if you need to. The digital battery voltage readout gives you a real time look at the battery, rather than the idiot lights.
2014 Vengeance VGF39R12
2012 F-350 DRW King Ranch