Ok guys, for System of a down, it's an easy "worst to best".
Not easy in terms of choice and because the differences between the albums are too evident, but only because the band was very busy fighting during these years living us with only 5 (or 4 and a half, if you prefer) albums in more than 20 years time! So here are my preferences for the band of Daron Malakian and Serj Tankian.
You let me know your thoughts, as always.