Since you guys seem to be living in a hole, there's this place called the /r/Overwatch Discord Server.
Has over 25000 members, so you should be able to find someone to play with in a second.
https://discord.gg/2x7xYmp
I'd say go for a 144hz display.
Once you go 144hz, you never go back. Easy as that.
If you have the rig for it, games will be smoother than a baby's butt.
I feel like everyone in this post is lying about how good their setup is. So I'm going to go ahead, and be as honest as possible.
Running a setup with a Corsair K70, with a bunch of dust and shit in it, a Logitech G502, and a HyperX Cloud II.