Tupac or Biggie?

I'm sitting here trying find some more sources and listing to some Notorious B.I.G. and Tupac. These are obviously two of the greatest rappers of all time, but which is better? This is a tough one but i think i'm going to have to go with tupac. Pac is better than Biggie in my opinion. He was real in his music. He spoke what was on his mind and feared no one. I love them both though!