I wouldnt consider it was written a "classic"
I agree with maybe the Documentary just missing out the list
But GKMC is a certified classic.
I thinks its a Tie.
If It Was Written isn't a classic than neither is the Blueprint or Lifestylez ov da Poor & Dangerous.
It Was Written is easily better than the overrated Blueprint and Good Kid, M.a.ad City. It's one of the best albums of the mafioso rap genre, you had the track where Dre and Nas came together in the middle of the east and west beef. I Gave You Power is one of the greatest rap songs, dude rapped as if he were a gun he inspired Tupac to write Me and my Girlfriend. The album went 2x Platinum in the same year, it received 4 to 5 Mics from most critics. How is an album with songs like "I Gave You Power", "If I Ruled the World", "Street Dreams", "The Message", "Affirmative Action", etc. not a classic? Then you have guys like Kendrick, Lupe Fiasco calling it one of their favorite albums.