[Verizon Motorola Droid Turbo Q&A, Help & Troublesh] krabman:
To preface my remarks I think first you have to quantify or define the purpose of the case, for most people this is going to have several aspects in varying degree. Some care primarily about max protection, others the aesthetics are of primary importance and all others factors are secondary. Some may want their phones as thin as possible, others like me actually find modern phones a little too thin to hold comfortably and want to add a little bulk.

You then have several styles of cases to address those desires/needs. A case protects a phone from breakage by primarily two things, distributing shock out further along the phone to reduce the force at the point of impact or absorbing (some of) it. Dual layer cases like the otterbox act in both ways, the hard shell can transfer some energy away from the point of impact and further distribute it and the inner shell absorbs impact forces. This is symbiotic in that the hard shell not only transfers energy out from the point of impact to a wider area this action also increases the area within which the inner case can absorb some of the energy further reducing the impact forces.

Thats all obvious but where I'm going is that cases I logically compare to the otterbox are other cases designed to provide good solid drop protection and these are usually going to be other dual layer cases or bumper and back combos. I said "out otterboxed" because they were the first big sellers of this style cases and while maybe not a standard to which others of its type are compared otterbox is at least a case with which most are familiar.

Its the good solid drop protection such cases provide versus the downside of their added bulk that I believe otterbox is getting "out otterboxed" at in that there are a number of cases that provide good solid drop protection that I would fully expect to completely eliminate breakage from a drop that did not directly impact the screen that are less bulky. Casemates toughcase, seideo dylex or surface, (for example) provide such protection with a great deal less bulk. I've included a picture of the naked toughcase next to the otterbox to give you an idea of what I'm talking about. While I have complete confidence that my phone will survive a drop with no damage whatsoever in either one the otterbox is much bulkier and needlessly so IMO. I've been using the toughcase and others like it for years and have never had a phone damaged in one outside of one case where I dropped the phone and it hit the corner of a granite countertop directly in the center of the screen which was going to be a fatality in any case.

I do have to say that if I were to go forth into world war 3 and had to pick one of the two I have here I would go with the otterbox but every other day I would pick the naked toughcase. The otterbox was the only case I could get in my area to put on the max while I awaited other choices or I would have never purchased it, ironically I like the ballistic nylon and have been running naked anyways. I suppose its an to each his own thing and I recognize that some people really do go out into something akin to world war 3 and are glad of their otterboxes but for me and I think most people they can get good protection of the kind dual layer cases provide in a more svelte package and give up nothing but the added bulk.