you always get commercial success confused with hip-hop status.
illmatic was slept-on commercially. it wasn't a mainstream success. but it was held in ultra high-regard in hip-hop IN REAL-TIME.
with strictly the hip-hop crowd, outkast's biggest year was '94. but naw, they weren't bigger than nas in that realm.
Illmatic was still slept on culturally. And that isn't even what I'm getting at. In 1994, nobody was making documentaries about it and it wasn't an album that was widely considered GOAT. Classic =/= GOAT or GOAT contender. There were many that weren't checking for Nas or
Illmatic in 1994 and it has little do with sales and more to do with the fact that it wasn't altering the culture in the way that other albums were in 1994.
Kast's biggest year Hip Hop wise is the period of '98-'99. That was the culmination of everything for them.
Nas was not bigger than Kast in 1994. Kast was performing on Martin Lawerence. Snoop, Biggie, and Meth from that era also performed there. No Nas.