I would say arguably
c9 vs faze was better. Everyone acts like it was only inferno
mirage was a fucking insane map that went back and forth and when faze won everyone on earth thought it was gg. C9 had never beaten faze on overpass so overpass was also a hype map.
and then inferno is inferno.
That said kato 2018 is in my top10 probably I dont have a real list but it was fucking insane.