Which of these would be the better option? I believe that the Acer has a faster reaponse time, compared to the Dell (5ms vs 7ms), but I am unsure about any other differences, including differences in the bezel width.
Well personally I would not choose either one as they do not support DisplayPort input. If you are setting up Eyefinity it is a must and a better solution than trying to mess with Active DisplayPort Adapters. Even if you are doing a Nvidia Surround I feel DisplayPort should be a must anymore.