Quiditch is pretty unfair, the snitch fly's in random areas, what if it were to fly closer to one seeker than another giving an unfair advantage. Same with bludgers.
And i dont understand why a team doesnt just make thier 3 chasers fast like the seeker and get 4 people to seek for the snitch while the other 3 team members stand directly infront of the 3 goals and defend them. That way they'd have a higer chance of finding the snitch and a low chance of being scored against, and a bit of chance of getting attacked
So in conclusion I like bltizball