All of them were following Puff to a degree. Didn’t It Was Written come about due to Nas losing the Source Award to Ready to Die?
To be real they all fed off each other.
Illmatic influenced RTD, Cuban Linx, The Infamous and Doe Or Die. RTD influenced Doe Or Die and IWW. Cuban Linx, Doe Or Die and The Infamous also influenced IWW. IWW influenced LAD. LAD influenced most mainstream but street oriented NY albums for the next 5 years.
Regardless of crossover tracks and pop appeal, lyricism and technical skill remained a must and Puff never deviated from that philosophy while he had any relevance. BIG, Mase, Lox, Black Rob, Shyne and G. Dep could all write and spit. Compare that lineup to some of the other bums from NY that was getting pushed at the time.