I got the SGP Ultra Crystal protectors for my gs3 and my Nexus 7 and I am very impressed. Can't even tell they are on there and they clean up amazingly hardly leaving finger prints at all...it feels like I don't even have one on. They made a glass version for the Galaxy Note 2 that is supposedly even better than the Ultra Crystal, but people are reporting it's too thick and is making the S-Pen hard to use.
I was about to buy the Zagg HD invisi-shield, well I actually did buy it at Best Buy at the recommendation of a friend, but when I got home and looked up reviews I was astonished to see it was awful, and I paid $25 for it. I then listened to everyone in the thread and got the SGP Ultra Crystal dry protectors for $13 comes with 2. I am very happy with my purchase. I just ordered one for my Note 2, bout to get one for my iPad.