Here's my NBA one:
The Four Rockets--Jordan, Drexler, Olajuwon, and Robinson on the Rockets
PoD: The Houston Rockets trade Ralph Sampson to Portland for their first-round draft pick and Clyde Drexler. They manage to turn the first-round draft pick into...Michael Jordan, who, along with Olajuwon and Drexler, form the core of the Houston Rockets. Then, in 1987, the Rockets trade Rodney McCray to the Phoenix Suns for David Robinson...
NBA Finals winners
1985: Los Angeles Lakers (9) over the Boston Celtics
1986: Houston Rockets (1) over the Boston Celtics
1987: Detroit Pistons (1) over the Houston Rockets
1988: Houston Rockets (2) over the Detroit Pistons
1989: Houston Rockets (3) over the Detroit Pistons
1990: Houston Rockets (4) over the Detroit Pistons
1991: Houston Rockets (5) over the Detroit Pistons
1992: Houston Rockets (6) over the Cleveland Cavaliers
1993: Houston Rockets (7) over the New York Knicks
1994: Houston Rockets (8) over the New York Knicks
1995: Orlando Magic (1) over the Houston Rockets (ITTL, Magic Johnson plays for Orlando--thanks to
@Chocolate Raines for the idea and just catch the Rockets at a bad time)
1996: Houston Rockets (9) over the Orlando Magic (The Rockets
crush the Magic ITTL in all four games, outscoring the Magic 670-335)
1997: Houston Rockets (10) over the Miami Heat
1998: Houston Rockets (11) over the Indiana Pacers
1999: Houston Rockets (12) over the New York Knicks
2000: Houston Rockets (13) over the Indiana Pacers (Drexler and Jordan both retire in this year, and Olajuwon follows in the next year)
2001: New Jersey Nets (1--they won 2 in the ABA) over the Sacramento Kings (note: the Nets, thanks to butterflies, manage to draft Kobe Bryant in 1996 and Tim Duncan in 1997; Tracy McGrady goes to San Antonio)
2002: New Jersey Nets (2) over the Sacramento Kings
2003: New Jersey Nets (3) over the Detroit Pistons (the San Antonio Spurs draft LeBron James ITTL)
2004: Detroit Pistons (2) over the Minnesota Timberwolves
2005: Detroit Pistons (3) over the San Antonio Spurs
2006: San Antonio Spurs (1) over the Miami Heat
2007: San Antonio Spurs (2) over the Detroit Pistons
2008: Boston Celtics (16) over the San Antonio Spurs
2009: Orlando Magic (2) over the Denver Nuggets
2010: Boston Celtics (17) over the San Antonio Spurs (note: LeBron James, Dwayne Wade, and Chris Paul head for the Los Angeles Lakers after this year--there is no Decision special, and Kobe Bryant went there in 2007)
2011: Los Angeles Lakers (10) over the Seattle SuperSonics
2012: Los Angeles Lakers (11) over the Boston Celtics
2013: Los Angeles Lakers (12) over the Indiana Pacers
2014: Los Angeles Lakers (13) over the Indiana Pacers
2015: Houston Rockets (14) over the Atlanta Hawks (note: the Rockets get the players the Warriors had IOTL)
2016: Cleveland Cavaliers (1) over the Houston Rockets
2017: Houston Rockets (15) over the Boston Celtics
2018: Houston Rockets (16) over the Boston Celtics
2019: Houston Rockets (17) over the Boston Celtics