I've never used a case for any of my iPhones but I'm going to get one for my 6+. I'm curious about what's better at dispersing the shock of a drop? Hard case? Silicone case? case made of both? I have put my 4s in a Quadlock case to mount on my bike and I was not happy to see it scratched the metal trim so I'm not really keen on hard cases at the moment. However, if they're better at preventing glass breakage, then that's what I'll do. Thanks in advance for any wisdom.