First I want to thanks "nd4speed" who sent me the example so I can test it out. I took these pictures with my normal point and shot camera, but I will retake them as soon as I can borrow one DSLR to take some better pictures. If you have any request please let me know.
Here is all the screen protectors I tried so far.
Left: SGP OLE vs Right: PS Antiglare HD
Close shot of the PS Antiglare HD
SGP OLE
SGP Ultra Fine
SGP OLE
PS Antiglare HD
SGP OLE
PS Antiglare HD
Left: SGP OLE vs SGP Ultra Fine
SGP OLE
SGP Ultra Fine
SGP OLE
SGP Ultra Fine
Left: SGP OLE vs Right: SGP Ultra Fine
SGP OLE
SGP Ultra Fine
SGP OLE
SGP Ultra Fine
I still prefer the SGP OLE, thats what I have on mine iPhone4, my brother and dad has the SGP Ultra Fine and PS Antiglare HD, sorry I couldn't put them(SGP Ultra Fine and PS Antiglare HD) together to take some pictures, because they never home in the same time. Both SGP and PS antiglare look a bit yellowish and never able to compare the clarity and sharpness with SGP OLE. Overall if you really want to keep the clarity and the HD retina display of iPhone4 stick with SGP OLE, or hate the smug, glare and fingerprint go with SGP Ultra Fine or PS Antiglare HD (I like the SGP better, because the precise cut at the home button make it really hard for ppl to notice you have a screen protector on it)

Here is all the screen protectors I tried so far.

Left: SGP OLE vs Right: PS Antiglare HD

Close shot of the PS Antiglare HD

SGP OLE

SGP Ultra Fine

SGP OLE

PS Antiglare HD

SGP OLE

PS Antiglare HD

Left: SGP OLE vs SGP Ultra Fine

SGP OLE

SGP Ultra Fine

SGP OLE

SGP Ultra Fine

Left: SGP OLE vs Right: SGP Ultra Fine

SGP OLE

SGP Ultra Fine

SGP OLE

SGP Ultra Fine
I still prefer the SGP OLE, thats what I have on mine iPhone4, my brother and dad has the SGP Ultra Fine and PS Antiglare HD, sorry I couldn't put them(SGP Ultra Fine and PS Antiglare HD) together to take some pictures, because they never home in the same time. Both SGP and PS antiglare look a bit yellowish and never able to compare the clarity and sharpness with SGP OLE. Overall if you really want to keep the clarity and the HD retina display of iPhone4 stick with SGP OLE, or hate the smug, glare and fingerprint go with SGP Ultra Fine or PS Antiglare HD (I like the SGP better, because the precise cut at the home button make it really hard for ppl to notice you have a screen protector on it)