No and YES
Pac is my favorite rapper of all times... as i got older certain rappers whose music I've used to bump all day ive out grew, and don't care for any more. where as, i've stay bumping all of Pac's music for the past 18 years.
with that said, there were rappers before Pac that were better than Pac, rappers during Pac that was better than Pac, and rappers after Pac that was better than Pac. and one of them is Kendrick Lamar. Kendrick is a better EMCEE than Tupac, better overall artistry, better in all technical aspects.
The only thing that Kendrick and damn near 99.9% of music haven't surpassed Pac in, is the EMOTION in Pac's music. When u listened to Pac's music u felt what ever he was talking about. Its like his music grabs u by the chest... the only nikkas in rap that ever had that IMO was DMX, and Kanye. If u listen to Pac's music its very spiritual, and the way he went about recording it shows that.