I think the problem with these Greatest Albums Of All Time lists is that no matter your age, there's always going to be a generation that you don't understand. I was born in 1973 so I grew up with Hip Hop. My earliest memories of Hip Hop were The Sugarhill Gang, Grandmaster Flash & The Furious 5 and Kurtis Blow. I remember when Run DMC came out and started what we considered at the time, "the new school".
So somebody my generation remembers Grandmaster Flash, Run DMC, Dougie Fresh & Slick Rick, Salt N Pepa, Public Enemy, etc. Somebody my age would rank those albums higher.
But somebody 20 years younger than me might have also grown up listening to Hip Hop but their perception is different. They might consider Drake, J Cole, and Kendrick to be GOATs and not be able to name a song by Run DMC or Grandmaster Flash.
I don't think there's any generation that can really make an objective list. People dismiss old school Hip Hop because they weren't there. I dismiss the newer stuff because a lot of it sounds the same; autotune, deep sub-bass, sped up hi hats. It doesn't even sound like Hip Hop imo. There should be another name for what these people do because it's clearly not the same thing that I grew up on.
There was an explosion in 1988 where there must have been at least 10 albums that were 4 mics or better released within a month of each other. But if you don't remember that summer then those albums are meaningless.