I use the crystal for the iPad, and the anti-glare for my iPhone. I figured that i'm using my iPhone outside more than my iPad. The crystal will also be clearer and I do a lot more reading on my iPad than my iPhone.
I assume you are talking about Power-Support, and if that is the case, they are both great films. No complaints from me. Have been using Power-Support since iPhone 3G.
Subjective matter.I just wanted to know which one looks better matt or clear screen protector.
Which is the best one ?
Again subjective. I've done the opposite. Fingerprints were driving me nuts on the iPad 2 so I put an SGP UF on it. The 4S has an SGP oleophobic (which, after time, effectively ends up being crystal).I use the crystal for the iPad, and the anti-glare for my iPhone.
Yes you do!!!!
The main concern with the iphone screen is not scratches, but the oleophobic coating wearing off, like here:
https://www.macrumors.com/2009/07/06/iphone-3gs-oleophobic-screen-coating-wearing-off/
Even the instruction booklet included says the coating will wear over time.
LOL I've never seen anything like that happen. Obviously that isolated case/cases is not the norm. Even if it does wear off it wouldn't happen normally like that.