Looking at them
side by side, they are almost identical in size & features. I'd personally go with the AOC. It has 1ms faster response rate, an audio out jack, and what looks like better overall reviews (from what I can find) I also think the AOC just has a cleaner "look" to it as well over the Dell. Looks like the Dell does have the blue light filter feature, which the AOC doesn't, but stop using the monitor 30-60 mins before bed and you should be good. (Blue light effects your circadian rhythm, your overall tiredness) Win10 has it's own Blue Light filter and you can download various apps as well as buying an actual screen you put in front of your monitor.