Emea has perfected defaulting which makes them the most boring to watch but the most consistent in performance.
APAC and China loves to invent and innovate new executes/retakes with fast pace play making them the most entertaining to watch but the least consistent in event placings as they will have big wins but choke towards the latter end of playoffs.
NA has the superstars and clutch style gameplay. Whereas other teams would save they will play for rounds that should be lost. They also have the most personality making them the region who most fans are invested in.
With all that said just rig the matches so we dont get inter-regional matchups at international lans as its boring. C: