Just agreeing with what nearly everyone has said. The only reason I use a screen protector is because of the fingerprint issue - drove me nuts having to clean my screen constantly. Now with the Apple anti-glare, it's a non-issue. Other than that, I'd probably go bare.
Although, even though I carry my phone in a pocket by itself, and I trust the screen the look nice under normal friction situations, I drop my phone ALL THE TIME. I could never trust myself without a screen protector.