quality 60 fps

So, i just bought an i7 4770k with a gtx 1070. Now all thats left is to buy a display. Im not planing on buying a fancy gaming display from Asus and stuff. ill just buy a decent widescreen display(60 hz). So, my real question is should i buy a 1440p display or a 1080p display. My main target is...

I was playing Overwatch fine this morning, went to get coffee and my screen is all black. When I rebooted, it displays some artifacts and then reboots in a continuous loop. If I boot into safe mode, I am able to see the display, log in, etc... My drivers are all updated. I swapped out my card...