>1.Eric B. and Rakim – Paid In Full
>2.NAS – Illmatic
>3.Biggie – Ready To Die
>4.A Tribe Called Quest – Midnight Marauders
>5.Raekwon – Only Built For Cuban Linx
>6.Slick Rick – The Great Adventures of Slick Rick
>7.Run DMC – Run DMC Self Title Album
>8.Public Enemy – It Takes A Nation of Millions
>9.Dr. Dre – The Chronic
>10.Mobb Deep – The Infamous
>11.Outkast – Aquemini
>12.Wu Tang Clan – Enter The Wu Tang (36 Chambers)
>13.A Tribe Called Quest – The Low End Theory
>14.Jay-Z – Reasonable Doubt
>15.Lauryn Hill – The Miseducation of Lauryn Hill
>16.Tupac – All Eyes On Me
>17.BDP – By All Means Necessary
>18.Ice Cube – The Death Certificate
>19.NWA – Straight Outta Compton
>20.The Roots – Illadelph Halflife
>21.De La Soul – 3 Feet High and Rising
>22.Mos Def – Black on Both Sides
>23.Kanye West – Graduation
>24.Biggie – Life After Death
>25.Snoop Dogg – Doggystyle​​
>26.Reflection Eternal - Train of Thought
>27.Fugees - The Score
>28.Eminem - The Marshall Mathers LP
>29.Little Brother - The Listening
>30.GZA - Liquid Swords

Definitely:
Paid in Full
Illmatic
Only Built 4 Cuban Linx
Midnight Marauders
It takes a Nation of Millions
The Chronic
36 Chambers
Low End Theory
Death Certificate

Maybe:
Ready to Die
Great Advantures of Slick Rick
Run DMC
The Infamous
Aquemini
Reasonable Doubt
By All Means Necessary
Illadelph Halflife
Three Feet High and Rising
Black on Both Sides
Doggystyle
The Listening
Liquid Swords

No:
Miseducation of Lauryn Hill
All Eyez on Me
Straight Outta Compton
Graduation
Life After Death
Train of Thought
The Score
Marshall Mathers LP

Others in consideration:
ATLiens
Things Fall Apart
Mama Said Knock You Out
It Was Written
Business As Usual
Like Water for Chocolate
Muddy Waters
Supreme Clientele
Still Standing
Criminal Minded
Moment of Truth
Hard to Earn
Makaveli: 7 Day Theory
Amerikkka'z Most Wanted
The Main Ingredient
Mecca And the Soul Brother
The Diary
Follow the Leader
De La Soul Is Dead
Fear of a Black Planet
Enta Da Stage
Late Registration
Ridin Dirty
Bigger and Deffer