Hi guys so questions simple.. if you’ve tried all 3 or only 1 it doesn’t matter please tell me your opinion..

What’s the difference between all 3 and is it worth it making the upgrade? I currently have a 4K 60hz monitor. And I’m looking to upgrade / downgrade to either 144hz or 240hz. I can run 4K everything ultra at about 250-300 on most of my games I play ( valorant cs cod..) I’ve had some people say it’s not worth it and keep the graphics but other say it’s really obvious..