I had the Zagg HD and liked it at first but had to return it because it blocks the proximity sensor on the phone, turning my screen off during phone calls and keeping it off. Once it was returned my screen behavior returned to normal. Just a warning! Going naked until ghost armor has their screen available.
Tried installing an "extreme guard" one off eBay. Somehow got long strands of dust or hair on it that are unremovable. Aborted that, so now going without. May try something else. One I tried was only $3, not $6 like I had said before.
I use RoboShields. They have an ultra clear military grade material. It's also reusable. I had a warranty issue with my LG L9, just pulled the protector off and re applied it to my new phone. They also offer their qr code skin wrapped my phone it looks awesome and works good.
The clear screen one from Sprint's "Fitted Screen Protectors" 3-pack. (not the Anti-Glare one. it's terrible) I know I know, you all hate this one or prefer Zagg or some wet application one. You do have to be extremely careful (dust & bubbles) like most others, but it's so smooth that it's like nothing is there. And that's what takes priority for me.