Which non-English season is a "must to watch"?

So, I've watched all the UK, US, NZ, AUS, and Canada seasons, as well as all the Hungarian and Polish seasons. I also took a look at the Norwegian seasons, but I found them boring (sorry!).

Can you recommend some of the international versions (without any spoiler) that you think are great? I only want to watch ones that start with at least 20 players.