Drop both phones and the glass screen is more likely to crack/break. We don't know how the anti-fingerprint coating will hold up after a while. It doesn't matter if the glass won't scratch if the coating does and is noticeable. If you are clumsy then the sprint's screen is better, but its up to you to decide which we like the feel of more.
Just from previous experience, plastic scratches to hell in normal daily use, just from sitting in a pocket. Glass doesn't. I'll take a device that holds up better with day-to-day use over one that might do better on a drop test.