I think yall in here (me included) and other hip hop heads kind of overrate his catalog and "influence" and overall impact, in reality most people don't rank him as high as we do...but, the hip hop media and them do underrate and underappreciate him. So he's not fairly judged by either side, imo. One side says Illmatic is overrated and Takeover killed Ether...the other side says "Nasir" is a great album and "Jarreau of rap" and shyt like that is fire, lol. Both don't know how to step outside of being a fan/hater and just be objective.
Nas is by far my favorite rapper ever and it's not even close, whoever is 2nd is extremely 2nd...but objectively speaking I don't think he's a lock for Top 3 ever, all things considered. I could argue he's not a lock for Top 5 ever but my stanning won't allow me to. He has a lot of weak to average material bro, albums and singles. It's usually because the production is ass but sometimes, not often, it's him who just sounds off on certain types of songs he attempts to make, the shyt just aint good. I think a lot of people like Nas the luminary/legend more than they actually like Nas's music.
That said, when his shyt is right it's super dead right and nobody does what he does better than him.