I dont understand those artist were terrible. There lyrics smell of paper. They sings about Ho's, cars, and thugs in a more godly way lol could be like "Christan rap". But Your trying to compare two different times and theres no point.
YouTube - Nas NY State of Mind
YouTube - 2pac-Tupac No More Pain
Those are the real best rappers. But Lil Wayne IS the best rapper making albums right now.