I have only seen the following five, listed from best to worst (which is still pretty good imo):

1. The Idiots
2. Festen
3. Open Hearts
4. Italian for Beginners
5. Mifune

Mifune had imo some little problems as it seemed to me at times too crowd-pleasing sentimental and a bit mainstream, the others were exceptional films imo. Probably the first 4 would all make it in my Top 10 of the years they were made in. 
But I must say it has been a long time since I've seen them, the "newest" being Open Heart on its theatrical release (two years ago?) and it blew me away.