I was watching the IEM Katowice 2018 grand final today on youtube and I noticed something that I don't quite understand.

Artosis said something like: "Starcraft2 has 2 big tournaments each year - IEM and Blizzcon".

I remember watching some GSL game some weeks ago and the same guy, Artosis, said something like: "GSL is the toughest tournament" and "This is the tournament that the Koreans want to win the most".
(which in my ears equals to being the biggest tournament)

My memory is known to not be the brightest one so you can take it all with a grain of salt. However - I also though all these years that GSL is the 2nd biggest tournament each year right after Blizzcon.


So my confusion is - which one is considered bigger? IEM or GSL?

At least I know that this wouldn't be a question in the early days of SC2, because then Koreans>Foreigners by a lot and guess where all the Koraens participated..