EU also has better players than NA but yea you're right, "only thing".
Impossible to prove that EU has better players, just MORE players therefore pick of the litter.
Unless you want to get an Iceland server and settle it.
Half the rounds in Greenland, other half in Iceland. That's the most fair it can be. It's possible to prove -> the example Ledger gave + you can analyse the playstyles and habits of individual NA top compared to EU. You'll see the difference in skill-level immediately.
And yes, he was above average, a good player in-fact.