Help on what Otterbox to get

I just got an iPhone 4S and I want to get an otterbox. Problem is, I dont know which one of the series to get. With the experiences with my old phones, I usually drop it when I leave it on my lap and forget about it and when I stand up it falls to the ground. Other than that, its the usual accidentally dropping it. I'm currently leaning towards either the Commuter or Reflex. Anyone please enlighten me with their otterbox experiences.