S1mple has been good for 4 years. 2016,17,18 and 19. He has the highest peak in CS History including 1.6 and GO.
Coldzera in 2016-2019 has been consistently performing as the top player like s1mple as well but with a longer prime than s1mple (so far), managing to keep his number 1 ranking in 2017 after taking it in 2016. Coldzera has held up far better than other ex-number 1 players eg Olof and GTR as his form hasnt dropped off as massively as his counterparts have.