As an update to my earlier post, my prior iPhone 6+ with an Apple leather case and a spigen screen protector had to be replaced after I bumped the screen (which was sitting in my pocket) with the armrest of my car when it accidentally bumped into me.
Felt a tremendous pop, pulled the phone out and huge cracks, coming from just to the left of the ear speaker.
The case had no hope of saving from this sort of destruction, which frankly I think is the result of a design defect. I'm surprised that the spigen screen protector didn't help, however.
The case has protected the phone from many, many drops, however (I'm a clutz).
I'm still going with the Apple leather case, though, and a screen protector that I purchased at the Apple Store (sorry, don't know which one). It's a matte antiglare finish.
Greg