You need to be better than your opponent at 4 maps to win an event, thats why some teams like TE, TL and Sen got knocked out of the tournamnet early on because they had only 2 or 3 good maps. Now, we only have 4 teams at the tournament, I ranked the teams on each map:
Rankings go from left to right, 1st team written being the best, last team being the worst
Abyss: G2, Vit, EDG, T1
Bind: Vit, EDG, T1, G2
Fracture: EDG, Vit, T1, G2
Haven: EDG, T1, G2, VIT
Lotus: T1, G2, VIT, EDG
Pearl: G2, T1, EDG, VIT
Split: Vit, EDG, G2, T1
Haven and Lotus rankings could change a lot, since none of these teams played against each other on those maps yet and these maps might be the deciding maps in all the matches and no one 1st bans these maps. So based on the rankings, 4 points for the best teams, 1 point for the worst team, here are the overall rankings:
EDG: 19
VIT: 18
G2: 17
T1: 16
What are your rankings for these teams? Who has the best map pool?