If you aren’t obsessed with climbing the CS:GO ranks by getting any advantage you can or becoming a pro, then the 16:9 is perfectly fine. Technically higher resolutions like 1440p and 2160p (4K) are also at 16:9 resolutions. However, there are no known pros who play at these higher...
Valve don't provide individual ranks for these games - so we don't know, for instance, if Plunkbat ultimately sold more copies thanCSGOdid - but instead has arranged them into olden hit record-themed categories. Without knowing exactly what the criteria for each of these is, my guess is ...