How about this for an unpopular opinion: 90 s is the weakest decade for house music: 80s and post 2000s beats it. Actually 90sbeats 00s but not post 2010s or 80s. Last few years a new golden age imo. Shock horror.
That the 80s was the best decade for house is an uncontroversial opinion. A musical phenomenon.
As house moved into the 90s it fractured into a million sub genres, developing at incredible speed in different directions, some of which are so far apart in sound it seems weird the same word is used to describe them - diva-house, happy-house, euro-house, tribal-house, jazzy-house, deep-house, disco-house, tech-house, pop-house... the list goes on and on. Loads of great tunes there, some of those scenes burnt bright for a year or two before collapsing into formulaic drudge.
The 90s were really dominated by the numerous styles of dance music inspired by the 80s house explosion - rave, hardcore, drum'n'bass, techno, trance, breakbeat, etc, etc. House wasn't the dominant style of dance music like it was in the late 80s, just one amongst many.
The 00s seemed to be mostly survivors from the 80s and 90s carrying on doing there thing. Unless you're a huge fan of EDM or electro-house you'd be hard pressed to make the argument for this decade being the best decade for house.
Since then there's been loads of great house music made, building on the foundations, the sounds pioneered in the 80s and 90s. If you're into it you might see it as better than what came before. But it's just one genre amongst the ocean of other genres, so it's hard for any specific tunes to stand out.