I know nothing about 1st generation, because it was before my time, so I could be wrong. I need a truly ancient entity like BlackpinkHouse to enlighten me.
But looking at the gens I was around for:
2nd gen: Big Bang & SNSD (YG & SM)
3rd gen: BTS & BlackPink (Hybe and YG)
4th gen: BTS & NewJeans (Hybe)
When BTS returns in 2025, Hybe will have the two biggest groups in K-Pop in both BTS and NewJeans, and their other artists are doing amazing as well.
No wonder they have people shook. I'm not a company stan, but I do like watching OG Big 3 stans quivering in their boots at the thought of Hybe monopolizing the industry like the Big 3 used to do but no longer can