Let's take a look at the top 20... expand it a bit...
1 Sgt. Pepper's Lonely Hearts Club Band The Beatles 1967
2 Pet Sounds Beach Boys 1966
3 Revolver The Beatles 1966
4 Highway 61 Revisited Bob Dylan 1965
5 Rubber Soul The Beatles 1965
6 What's Going On Marvin Gaye 1971
7 Exile On Main St. Rolling Stones 1972
8 London Calling The Clash 1979
9 Blonde On Blonde Bob Dylan 1966
10 The Beatles (The White Album) The Beatles 1968
11 The Sun Sessions Elvis Presley 1976
12 Kind Of Blue Miles Davis 1959
13 Velvet Underground & Nico Velvet Underground 1967
14 Abbey Road The Beatles 1969
15 Are You Experienced? Jimi Hendrix Experience 1967
16 Blood On The Tracks Bob Dylan 1975
17 Nevermind Nirvana 1991
18 Born To Run Bruce Springsteen 1975
19 Astral Weeks Van Morrison 1968
20 Thriller Michael Jackson 1982
The only album I can see in this company is It Takes A Nation of Millions... Why? Because of the impact it had (realistically, it's better suited as Top 50). I love the passion we have for Nas, Outkast, Lauryn, but the albums mentioned just aren't in Top 10 or Top 20. There are other CLASSIC albums from other genres (Off The Wall, Innervisions, Songs in the Key of Life, Dark Side of the Moon, Electric Ladyland, Bitches Brew, Led Zeppelin 1, Purple Rain among MANY others) that didn't make the top 20. .
I think there are hiphop albums that deserve to be in the Top 100 discussion (meaning you can make an argument but they're not necessarily top 100). They include The Chronic, Paid in Full, RUN DMC Raising Hell, Ready to Die, Doggystyle, Reasonable Doubt, Straight Outta Compton, Amerikkkas Most Wanted, Miseducation, Aquemini, 36 Chambers, The Score, All Eyez on Me, TMMLP, All Eyez On Me, LL's Radio.... Again, we can make an argument for top 100 maybe... but top 10 is just unrealistic in my opinion.