The better player in this leaderboard is determined by who had better stats this year. Last year s1mple carried his team to an important place in the rankings, this year not so much. Liquid would have never reached #1 spot without EliGE. Even when the team struggled he was playing consistent and he always stepped up when they needed him.
The same goes for ZywOo, Vitality would have never reached the #2 spot without him, they would probably be a T2 team if it wasn't for him