I would break basketball ability down to 35% offense, 35% defense, (both of equal value because 2 points is either scored or prevented), then 20% rebounding, loose balls, hustle plays and 10% intangibles, mostly mental toughness.
I would say Bill Russell is the greatest defender the game has ever known - no contest. I would say Russell was good to very good offensively - on teams full of scorers, he averaged 14 - 18 points per game annually depending on the season. I would put Russell as the #2 all-time rebounder behind Wilt. Finally, I would rank him again as the best ever when it came to intangibles and mental toughness, beating his opponents when playing under the highest level of pressure, playoff games, game 7's, late game execution and winning the most critical possessions of a given game. He also elevated the play of his teammates - and of course was the absolute best at Winning.
11 NBA titles in 13 years, 2 NCAA titles in 3 years and an Olympic Gold Medal.
To me - that adds up to the Greatest of All Time - #1 Baby !!