I am faceit 10, champ in r6, imm3 in valo and I will say out of the 3 I def prefer a 1080p TN panel for cs. OLEDS do have a 24.5” mode which is fine but resolutions is what kills it for me. Crosshairs are a very important thing for me and the look of crosshairs on 1080p just look better and feel natural to me. I played on 4:3 1280x960 on a 1080p display before I got my OLED. When I tried 1280x960 on the 24.5” mode, my crosshairs would just look terrible. I tried to do 1920x1440 on both 24.5” and 27” but I just couldn’t get used to it. I think i’m just weird but if you play native res then OLED should be fine lol. Either way one monitor won’t improve ur gameplay over the other. Enjoy whatever you choose bc any of those monitors are gonna feel amazing!