LeBron is playing in an era where he gets to build teams around him. MJ was stuck with a fossil in Cartwright at center, a head case at power forward in Rodman, average point guards, and a good small forward in Pippen who was never super successful outside of playing with MJ.
LeBron is in my top 10 because of freakishly exceptional ability and physicality, but put him and MJ on one of those average Chicago teams and I like MJ to be more successful.
LeBron single-handedly came back from a 3-1 deficit in the NBA Finals to beat one of the greatest teams in NBA history (the Warriors in their true prime, the season they went 73-9). He literally beat them BY HIMSELF. Kyrie Irving was out, and so was Kevin Love. It was ALL LeBron. No other athlete in any other team sport has done something similar that I'm aware of.
Also, Dennis Rodman wasn't just some headcase. He was and still is regarded by many as the greatest defensive player who ever lived (a separate debate obviously, but he's definitely in the conversation at least). He could shut down anyone and everyone, regardless of the position. He's a huge part of why the Pistons won when they did too. As for Scottie Pippen not having success outside of Jordan, the Bulls were 57-25 in 1993 when they won their 3rd title with Jordan and Pippen. The next year, Jordan retires, and they went 55-27. That's only 2 fewer wins after losing Michael Jordan! Pippen also led the league in steals that year. Pippen was very underrated. He truly was one of the all-time greats.
Here are the Bulls records during the Jordan-Pippen era:
1984 38-44 - Jordan
1985 9-9 - Jordan (injured)
1986 40-42 - Jordan
1987 50-32 - Jordan + Pippen
1988 47-35 - Jordan + Pippen
1989 55-27 - Jordan + Pippen
1990 61-21 - Jordan + Pippen
1991 67-15 - Jordan + Pippen
1992 57-25 - Jordan + Pippen
1993 55-27 - Pippen
1994 33-31 - Pippen
1994 13-4 - Jordan + Pippen
1995 72-10 - Jordan + Pippen + Rodman
1996 69-13 - Jordan + Pippen + Rodman
1997 62-20 - Jordan + Pippen + Rodman
1998 13-37 - All 3 players left
Combine those together and you get
203-43 = 82.5% win rate w/ Jordan+Pippen+Rodman
350-159 = 68.8% win rate w/ Jordan+Pippen
87-95 = 47.8% win rate w/ Jordan only
88-58 = 60.3% win rate w/ Pippen only