Do yourself a favor and get the PS Crystal Clear protector, it's hands down the best screen protector I've ever used. When they say it's Crystal clear they weren't kiddin', you can't even tell it's there and it's smooth to the touch as if you were touching glass.
I'm not sure what everyone is talking about as far as the fingerprints go, I've had mine for two weeks now and there's absolutely no fingerprint problem here. Unless you're eating a pizza and then touching your phone you should be fine, a single wipe from a micro-fiber cloth does the trick every time.
You'll want to make sure you take your sweet time when applying the screen protector though, it took me 30+ minutes to get it on perfectly with ZERO dust particles and now my iPhone 4S looks PERFECT w/ added protection.