I started following the NBA in 1980 with Bird and Magic so I may be ignoring the greatest teams ever. Here we go..
Better teams than the Warriors assuming the rules past and present are compromised....
80's Lakers
No doubt better. Magic destroys Steph with size and passing at the point. Shooters about even. Draymond, meet Kareem.
80's Celtics
Hated them then, respect them now. Who guards Bird? Who deals with McHale and Parrish inside? Who deals with whatever Ainge is doing to piss players off? DJ can play some D....
90's Bulls
8 in a row without MJ trying baseball. Anyone that makes that comparison is voted off of the island immediately.
99-03 Lakers
Could they have stopped Shaq and Kobe?
Spurs, but later Spurs.
Give me Duncan, Manu, Parker and Kawhi over this team in 7 games.
Heat
When they were at their best they were better. Defense wins titles.
Want a true battle? 89-90 Pistons vs Warriors.
Go to rules back in the day and the greatest team ever gets swept.
Just get sick of the talk radio recency bias. This team has won 3 of 4 in a watered down league.
:0corn
Oh come on. Be serious....I've watched basketball during the era's you've listed here. I was a huge Sixer fan back then. Watched a lot of basketball through the 70's, 80's and 90's. I played a lot as well back in the day. And I'll just say, you're way off. You're entitled to your opinion even though I think it's very flawed. At 6'10" Magic could have never guarded Steph and Klay. Steph is way faster and has way more handles. Magic was slow and couldn't shoot from deep. And while Kareem is lumbering down the court making 2's here and there, the Warriors are burying them with 3's. Which has been proven over and over that the percentage of 3's over 2's by the Warriors buries teams over and over. They go on amazing runs and put a game out of reach in literally seconds. The barrage of 3's by the Warriors compared to the Lakers making 2's wouldn't even make it a contest. Kareem would get exposed in every pick and roll and every switch at the top with a guard. The game is way faster now than it ever was back then.
Same for the Celtics. Way too slow for the speed and tempo the Warriors play at. Bird? Slow. McHale? Slow. Parrish? Slow. And Ainge and Johnson trying to guard Curry and Klay would be a comedy. Bird's outside shooting could make it interesting, but that's about it.
The only two teams that would have an outside chance would be the Bulls and Kobe's Lakers. Because Michael is Michael and there was no player with a bigger will to win as him. But their bench and secondary players might cost them in a series against the speed of the Warriors. Guys like Wennington, Perdue, King, Cartwright, Longley, et al, would be exposed for being slow as turtles. I would never count out Jordan and I would think every series would go 7 games.
Kobe and Shaq would be formidable because they could score with the Warriors and keep up with that tempo. Inside, outside.
You say defense wins championships? The Warriors defense gets extremely overlooked. The Clippers come in to the series scoring well with Williams and Harrell. The Warriors shot them down. The Rockets have the most prolific scorer maybe ever in the NBA and the Warriors shut his ass down. This year and last year. There's a reason the Rockets went 0 for 27 from the 3 point line last year and got blanked again when it mattered this year. Damian Lillard comes into the series against the Warriors looking unstoppable. What happens? Warriors shut him down too. Like I said, there's a reason why all these amazing scoring guards get shut down. It's not just a fluke that they can't make any shots and they go into a slump. Draymond and Andre are two of best defenders in the league and Klay's defense against Lillard has been crushing. Lillard, who is one of the best guards in the league is out there shooting 30 footers because that's all he can buy.
And all this is without Durant and Cousins. Go back and check out what Cousins was doing to every big man he faced right before he got injured. He shut down Jokic and Adams and was playing really good overlooked defense at the time. And we're not even counting that the best player, in who I think has ever been in the NBA, Durant, is injured right now. 7 foot wing span and plays as fast and as good as any guard. Unstoppable.
The first few teams you listed were way too slow to ever keep up with these Warriors. It would've been no contest. But comparing eras is fruitless none the less.