My last phone before the iPhone in 2007 was a Treo. Good gawd that thing was dropped countless times--once from a moving motorcyle without any case (the finder called me and I got it back--even went back and found the sylus on road where he said he found the treo).I've never dropped my iPhone 5 but I've dropped my S3 a few times and it took the hits better than Rihanna does.
I think it is a plus that plastic gives. That Treo did the same thing that my original Palm Pilot would do when dropped hard enough: back cover came off, usually with the battery as well.
I'm hoping that is what my Note 2 will do, if it ever is in that situation. It is what happened in the drop test video I saw about it.
Michael