Regular season On court plus/minus per 48 minutes:
Shaq: +8.50
Kobe: +5.66
Shaq/Kobe on court: +9.63
Shaq, no Kobe: +4.76
Kobe, no Shaq: -2.67
No shaq or kobe: -6.59
plus/minus:
Shaq: +12.44
Kobe: +5.77
Here is where it gets interesting, playoff numbers from 01-04:
Shaq: +7.08
Kobe: +5.20
Shaq/Kobe on court: +8.06
Shaq, no Kobe: -3.34
Kobe, no Shaq: -12.51

no shaq or kobe: -9.10
Playoff plus/minus:
Shaq: +19.15

Kobe: +9.72
So it's clear that Shaq and Kobe on the court together were a +10 team (1997 Bulls level) and when they were not on the court the team collapsed. This showed the Lakers were Shaq, Kobe, and a bunch of scrubs. What's interesting is that this data should finally put the rest of all the Kobe being 1A since 01 crap. Shaq was the clear man. His playoff impact numbers are on another level. If you project that to per 100 possessions, we are talking about a +21-22 player in the playoffs. That is unheard of. Especially doing it for 4 seasons in a row. Just goes to show how dominant Shaq was in his prime.