Lupe Fiasco is really taking advantage of Twitter and the power to start a debate. 

Just this week, he tweeted at Joe Budden and asked him for his spot in Slaughterhouse, which started a huge discussion around who should be the "new" fourth member. 

Now, Lupe is getting Twittersphere poppin' again, this time for a list he put together. 

According to Lupe, there is no such thing as a "best rapper," but he considers certain rappers to be part of a "high tier". 

In his "high tier" list, it features Aesop Rock, Homeboy Sandman, Black Thought and King Los. 

No such thing as best...But at the high top tier levels its @AesopRockWins & @HomeboySandman & @blackthought & @iamKingLos https://t.co/RNafNKCRaJ

— “DROGAS WAVE” & “BeatNPath” NOW PLAYING (@LupeFiasco) January 18, 2020

Who's on your "high tier" rapper list?