based off of the group stage, here are how the 2023 regional leagues are performing so far.
Americas
10-7, 59%% win rate
4/7 teams qualified to playoffs, 57%
EMEA
6-3, 67% win rate
3/3 teams qualified to playoffs, 100%
Asia
4-8, 33% win rate
1/6 teams qualified to playoffs, 17%
Asia has majorly underperformed this champions, but the argument for best regional league is not nearly as clear-cut. EMEA teams are the most consistent with the highest win rate, but due to the greater depth and sample size of the Americas league, I think they'll be the ones to watch out for in 2023.