Sturdiness of Apple Bumper and other bumpers
Well, the iPhone 5 comes out soon, and if I won't be able to upgrade early, I have decided that I want to go the minimalist approach with my 4S. I currently have a Speck PixelSkin HD, and it's the perfect case between minimum size and maximum coverage. Along with my case, I have a front and back screen protector. I like to keep scratches off. There are no scratches on my phone except maybe micro scratches on the home caused by the thumb, but they are only visible at certain angles in the sunlight.
How sturdy are apple bumpers, and do they last a long time? Are they compatible with both a front and back screen protector? What other bumpers are aesthetically appealing and well made that work with front and back screen protectors? Also has to offer the "lay on face" protection.