The thunder, the cavs, the clippers
I think we're just now getting to a point, with the signings of KD and boogie, where the accumulation of talent approaches their actual and perceived on court dominance...
Pre-kd the warriors were one superstar (curry), one fringe all-star (klay... And before people start taking that as a knock, think about all the good guards in the west alone and consider how guys like dame were getting snubbed cause Klay made it), a great defensive player that wouldn't be considered all-star level in many other situations (dray) and role players...in a vacuum of evaluating players on a individual level, they weren't leaps and bounds above the rest of the league at all... certainly not to an extent where you look at them and go "oh man that team is so stacked... they're gonna break the all time wins record"...
the reason why they were so good is because Steph basically broke the concept of modern NBA defense... schematically they were way in front of the rest of the league, not talent wise... similar to how the post-prime Duncan, pre-prime Kawhi spurs were when they went on their title run...now the individual players have had their statuses retroactively lifted because of team success, but let's not get the chicken and the egg confused...
Now things changed when KD got there...then they had two legitimate superstar franchise players, and they morphed into what the Heatles were supposed to be