Just to weigh in on the conversation. I am Jamaican and have been listening to hip hop since 1992 (I am talking about from Cypress Hill, Das Efx and onyx days) and honestly sure Tupac had albums at the time but none of us in these parts either heard or rated them highly. Frankly I thought Tupac was an actor trying to rap!

Biggie on the other hand, Ready to die was a breakthrough album that brought hip hop in full force to the entire world. At the time so wide was his appeal globally that he was one of the first Hip Hop artists to perform at Sting (in Jamaica) and command large crowds. He made hip hop change from being something that only a few people followed to being a mainstream music in Jamaica and the world. And he did all that with just his first album!

People in Jamaica didn't really start listening Tupac until he started dissing Biggie, and then when Pac died his fame skyrocketed into legendary.Hence Biggie's song "You're nobody til somebody kills you".

Biggie was the biggest influence in hip hop while he was alive, on the other hand, people didnt think Pac was so great until he died.So you judge for yourselves who was the Greatest.