I haven't finished tracking Russell games yet, but I have finished the majority of them for now. Here are the numbers similar to the ones I posted for Hakeem, Kareem, Wilt and Shaq before:
Rim protection1962-69 Russell (estimated): 9.4 high quality contests per game, 2.5 weak contests per game
1993-94 Hakeem: 7.7 high quality contests per game, 1.9 weak contests per game
1962-67 Wilt (estimated): 7.1 high quality contests per game, 2.7 weak contests per game
1971-79 Kareem: 6.4 high quality contests per game, 2.5 weak contests per game
2000 Shaq: 3.7 high quality contests per game, 2.8 weak contests per game
1982-83 Moses: 3.2 high quality contests per game, 3.0 weak contests per game
Help rotations inside1962-69 Russell (estimated): 2.8 high quality rotations per game, 0.8 bad rotations per game
1993-94 Hakeem: 3.6 high quality rotations per game, 1.3 bad rotations per game
1962-67 Wilt (estimated): 1.0 high quality rotations per game, 1.2 bad rotations per game
1971-79 Kareem: 3.1 high quality rotations per game, 2.2 bad rotations per game
2000 Shaq: 1.4 high quality rotations per game, 1.8 bad rotations per game
1982-83 Moses: 1.3 high quality rotations per game, 1.4 bad rotations per game
I will post a few Russell clips to help you understand why I think his defense would translate to future eras better than anyone's.
Perimeter Defense
Rookie Russell pressures Pettit on perimeter and Bob tried to blow him by with a quick first step. Notice Russell's unreal recovery time and very light footwork. He blocked Pettit's layup attempt with his right hand - that's important since a lot of shotblockers are one hand dominant, but not Russell.
Russell in his last year, at 35 years old switching onto perimeter, pressuring opponent and closing out long jumpshots. Look how effortless he moved despite the age.
I will post more when I get a new footage from 1964 ECF (it should be ready next week).
Over 46% of P&Rs defended by Russell were switched by Bill. In comparison:
Hakeem: 22%
Wilt: 21%
Kareem: 20%
Shaq: 10%
Moses: 15%
Note that Shaq's and Wilt's numbers could be a bit overstated due to them playing in deep drop coverage, to the point that I didn't count all of their P&R defensive possessions.
Sample of size isn't massive, but it seems that Russell was more willing to pressure perimeter players than any other center that I tracked so far. The numbers can change after I finish my evaluation, but it is a clear pattern when I watch Russell.