I've had the iPhone 4S and the Otterbox Defender since November 2011. The case has become pretty worn down (stretched/warped/loose silicone, ripped pieces, scratches on screen protector, etc.) so I'm looking to buy either a Griffin Survivor or another Otterbox Defender. I'm just not sure which one would be better for protection and which one would last longer. At the moment, I don't really care about looks or style, I just want the case with better protection and longer lasting. Also, I noticed that there are two types of Survivor cases on the Griffin website. There's the original case and the custom case. The two seem to be built differently and the silicone covers different areas. Out of these two which one provides more protection?