there is only one case that I've owned that won't scratch. That is the Otterbox Defender.
I've used many cases. I've bought more cases than you can imagine.
The chrome bezel is usually the first to get scratched in a case. Especially in a silicone case.
Using a full body Invisibleshied, Bodyguardz, Bestskinsever, etc, The bezel still gets scratched. Most films do not cover the entire bezel. Using a protective film, the part that gets scratched is the chrome bezel that is flush with the screen. That's where most people have scratches. It's inevitable.
For anybody that does not have scratches on the chrome bezel that is flush with screen, please let me know what (if any)protection you use. I'm ready to take mine out to the Otterbox and use something new.