The Greatest Rapper of All time has been an on going argument for years, but what really defines greatest? Is it lyrical content, story telling ability, record sales or longevity? Will the person with the greatest impact be considered? If you are basing your answer on record sales Eminem has the highest number of record sales, with 6 of the top 50 selling albums. Tupac is in 2nd place with 4 of the top 50 selling albums. Does this make Outkast the greatest because they have the number one selling album of all time? Or are they excluded because they are a group? But when considering record sales is Biggie punished because he only had 2 albums both which appear in the top 50? is MC Hammer and Vanilla Ice in the running because they have the number 5 and 13 top selling albums? How is Rakim factored in this argument with what would be considered minor record sales but he is arguably the greatest lyricist? When you think about the biggest impact on the game; Pac, Biggie and Jay Z have to be your front runners. But how do you grade the impact rap has had on Will Smith? And can you ignore the longevity that LL Cool J has? When you look at the total picture record sales, impact and lyrics your list would have to include; Biggie, Pac, Nas, Jay Z, Eminem, but who really is the greatest rapper of all time and why?