I've found some more in-depth specs for the AOC 20" monitor click here
to view them.
I know people like branded names, or the most pretty looking but it REALLY has no affect so it doesnt matter to me which one u think looks better. I personally think the AOC is better because im planning to use it for a monitor, a tv for my ps3 and a normal tv.
It has a HDMI connection as well as vga, whereas the best the samsung offers is DVI which tbh is becoming old technology compared to HDMI. And im guessin since the AOC is widescreen is can have an aspect ratio of normal and widescreen.