West (18): 1999, 2000, 2001, 2002, 2003, 2005, 2007, 2009, 2010, 2011, 2014, 2015, 2017, 2018, 2020, 2022, 2023, 2025
East (9) : 2004, 2006, 2008, 2012, 2013, 2016, 2019, 2021, 2024
West has more ambitious newer owners, better GMs/ Front Offices, scouting and some luck in drafts I expect this trend to continue for some time especially if Giannis heads West. When will the league address this disparity in conferences?
Edit:
It gets even worse head to head during the regular season:
Special_Puppy wrote:West has won 55.1% of its games against the East this year https://www.basketball-reference.com/friv/east_vs_west.html
Since 1999-00 to now West has won 6,298 games in 10,844 head to head matches in the regular season.. that's over 58% of games.

At one point.. 21 out of 22 seasons West has won h2h in that span. Could've been 24 out of 26 if the West didn't fumble in the 2021-22 season by a mere 3 games. Whole careers came and left only seeing Eastern Conference winning once head to head. Talk about dominance. Yikes.