*through the 2022-23 season

The Western conference has dominated the East throughout the history of the modern NBA. Out of the 47 (about to be 48) NBA seasons since the merger, the West has had a winning season against the East in 34 of them, including 20 out of 23 seasons ever since 2000. The most dominant season the West has had over the East was in 2013-14, when it won a whopping 118 more games than the East.

I think the popular opinion about the seasons that the imbalance between the conferences is in the early 2000s, but based on win totals, the most lopsided 6 year stretch in the West's favor was from the 2009-10 season to the 2014-15 season, where the West won a combined 424 more games than the East in just those 6 seasons.

Likewise, the most lopsided 6 year stretch in the East 's favor was from the 1994-95 season to the 1999-2000 season. The East won a combined 294 more games than the West over these years, which includes the years when the Jordan Bulls were winning 72 and 69 games in a season.

This season is on pace for more of the same, right now the West is up 60 wins on the East, 595-535. This would be the biggest difference in favor of the West since 2015, and it only looks to get more lopsided from here.