What is the best System of a Down album of all time?

Erratic, politically charged, and uniquely Armenian-American in flavor — five records of barely controlled genius that still sound like nothing else. Which is your pick?

1. 1
   Toxicity

   System of a Down's 2001 iconic album mixing Armenian folk, metal, and political themes.
2. 2
   Mezmerize

   System of a Down's 2005 first of a two-part album set, debuting at #1.
3. 3
   Hypnotize

   System of a Down's 2005 companion album released six months after Mezmerize.
4. 4
   System of a Down

   System of a Down's 1998 self-titled debut album introducing their chaotic style.
5. 5
   Steal This Album!

   System of a Down's 2002 compilation of unreleased tracks from the Toxicity sessions.