Wholistic stats:
Ai. Regular Season BPM: +7.3 2000 Shaq > +5.2 1977 Kareem [though 1972 Kareem is higher, and 1971 and 1973 are close].
Aii. Postseason BPM: +8.5 1977 Kareem > +7.0 2000 Shaq [1974 Kareem is also higher than peak Shaq, though 2000 and 2001 Shaq come next]
B. CORP: 29.4% 2000 Shaq > 25.8% 1977 Kareem.
Additional stats. Regular season: 2000 Shaq > 1977 Kareem in WOWY, and 2000 Shaq barely > 1977 Kareem in winshares; 1977 Kareem barely > 2000 Shaq in Basketball Reference's BPM.
Additional stats. For postseason: 1977 Kareem > Shaq in Basketball Reference's BPM and winshares. In a larger postseason sample, 77-79 Kareem barely > 00-02 Shaq in postseason Goldstein PIPM.
Takeaway: 00 Shaq probably wins regular season, 77 Kareem probably wins postseason.
*Since it's the stat of the moment, I'll also note that in Squared2020's 1985 Historical RAPM sample of 41 games (where the Lakers played just under their season average), Kareem nearly matched peak Shaq's RAPM a full 8 years after Kareem's peak!

Concerns for Kareem: 1. postseason sample size in 1977. 2. How much did his regular season "coasting" enable his 1977 postseason success?
70sFan wrote: 1. Kareem was well known for his postseason resiliency, so I wouldn't expect him to regress against the Sixers in the finals. We've seen him having 3 complete finals runs (1971, 1974, 1980) that were on extremely high level anyway. I know it's not the perfect way to judge season (maybe I am too inconsistent with my approach as well?), but I think that Kareem couldn't have done anything better with what he had in 1977, while Shaq was in inarguably better situation and I have seen moments when he didn't play up to his potential (although he was amazing overall in the playoffs).
2. Given how well both played, I find it hard not to pick a player I consider simply better. It's not MJ vs LBJ situation to me, because I legitimatelly can't decide who was better between these two. Shaq in comparison has a lot of exploitable weaknesses compared to Kareem (FT shooting, lack of mobility, limited range, poor defensive fundamentals) and even though he was dominant in spite of them, I don't think he was more dominant than Kareem.
For sure, it's definitely true that Kareem's resilient! And he's definitely had a number of great and deep postseason runs. But it still doesn't seem like he reached the same heights of 77 in any other year (which is fair... it's hard for anyone to reach those heights!). For example, in boxscore metrics, his 1977 BPM was 8.5, while his 1974 BPM was 7.9. He had 6.4 in 1979 and 6.8 in 1980. Similarly, with scoring, while he had 31.2 inflation-adjusted pts/75 on +13.7% rTS in 1977, he "only" had 27.0 pts/75 on +9.0% rTS in 1974 and 24.0 pts/75 on +12.5% rTS in 1979.
The argument against Kareem would be that his ridiculously efficient scoring in the 1977 postseason was a hot shooting streak (hot even for him), which wouldn't be sustainable in a larger postseason or if he didn't coast as much in the regular season.
The argument in favor of Kareem would be that he still got close to that historic level 3 years before and 2 years after, with 1977 being the only good postseason sample between 74 and 79. This suggests the 1977 postseason could be an accurate showing, which he would have replicated (or at least gotten closer) in 1975, 1976, and 1978 if he had a better team to support a deeper playoff run.
I do find your first point, that Kareem played almost perfectly given the poor situation (and that he showed a capability to play a ceiling raising role in non-peak years) fairly convincing. For your second point, I'm not quite there yet thinking Kareem is "simply better", though you're right that Shaq does have more exploitable weaknesses and is less well rounded.
Scoring: Kareem > Shaq.
I went into this thinking Kareem was a slightly better scorer, but your comment about just how wide the efficiency gap is really swayed me:
70sFan wrote: - Shaq's highest rTS% accomplished in the playoffs during his prime (1994-03) was +8.7 rTS%,
- Kareem surpassed that mark 6 times in 1970-83 period (1970, 1974, 1977, 1979, 1980, 1983).
Wow! For what it's worth, 4/5 of the top Postseason ScoreVal seasons go to Kareem over Shaq.
Defense: Rim Protection Kareem > Shaq?
70sFan wrote:1971-79 Kareem: 6.4 successful stops at the rim per game, 2.5 weak effort plays at the rim per game
1999/00 Shaq (excluding 2000/01 games): 3.7 successful stops at the rim per game, 2.8 weak effort plays at the rim per game
With roughly the same number of questionable plays, Kareem defended almost twice as many shots as Shaq. You may think that Shaq was more intimidating inside, but that's not true. When I also incluce high quality rotations that prevented from rim shots vs lack of them, Shaq also looks notably worse:
1971-79 Kareem: 3.1 high quality rotations vs 2.2 missed rotations
1999/00 Shaq: 1.4 high quality rotations vs 1.8 missed rotations
If we compare these numbers to all time great rim protector like Hakeem, you'll see how these two compare:
1993-94 Hakeem (35 games): 7.7 successful stops at the rim per game, 1.9 weak effort plays at the rim per game
1993-94 Hakeem (35 games): 3.6 high quality rotations vs 1.3 missed rotations
Thanks so much for tracking this! Super interesting stuff. I can definitely see Shaq making poor or slow rotations (thanks as well for the clips!). And good catch about Shaq's intimidation inside, that's exactly what my counter would have been

Question: since Kareem played in a different era without the three point line, did he face more drives toward/near the rim? That might not change the fact that Kareem had a better rate of quality rotations / stops, but it might shrink his volume advantage go successful stops. Also: Did Kareem make fewer stops or quality rotations in the second half of the 70s vs the first half?
Defense: Man Defense Shaq > Kareem?
I'll bring in colts18 since they provided some nice Man defense stats. colts18, do you have any thoughts on the above? Also, it looks like your stat about SRS when Shaq and Kobe are both together is wrong... 9.71 SRS wouldn't be the 4th best SRS in 3 pt era behind 92, 96, 97 Bulls, since multiple Warriors teams have eclipsed that value. Perhaps the quote is old?
Shaq’s 2000 season was his best defensive performance ever. The Lakers finished #1 in Defensive Rating (-5.9 relative to league average according to B-R), 1st in FG% allowed, 3P% allowed. Shaq led the league in Defensive Win Shares. Shaq’s man defense was a huge part of that. According to Hoopsstats.com, the Lakers in 2000 allowed 14.0 PPG, 40.7 FG% to opposing center. They had the best PPG against Centers, FG% against centers, and finished with the 2nd fewest FTA/game allowed to Centers.
Anyway, here were some of the lines that stood out to me from colts' defense of Shaq's defense:
colts18 wrote:http://www.hoopsstats.com/basketball/fantasy/nba/opponentstats/00/10/pts/1-1" onclick="window.open(this.href);return false;
Top TS% defense:
Lakers: .455 TS% (.453 in the games Shaq played)
Spurs: .486 TS%
Heat: .490 TS%
The League average center was .526 TS% so the Lakers were -7.1 TS% relative to League average and they beat the Robinson/Duncan Spurs by 3.1 TS% for 1st place. An impressive feat.
...
Here is what Shaq did vs. the top 5 non-Shaq scorers at Center that year: ...
Average dropoff is -2.2 PPG, -10.3 FG%, -12.0 TS%.That is a significant dropoff.
Playoffs (regular season averages in parenthesis): ...
Average dropoff: 2.2 PPG, -9.3 FG%, -10.8 TS%![]()
Any thoughts? Though I would have thought rim protection is more valuable (and it still might be enough to take Kareem over Shaq defensively), could Shaq's make up some of the defensive gap with man defense?
Creation: Shaq > Kareem, but by how much?
70sFan wrote:DraymondGold wrote:-Creation and other offensive skills: I think here's where we might disagree? At least as far as I can tell (though I'm not film expert on Kareem -- feel free to let me know if I'm wrong here!), I see Shaq's overall offensive creation as above Kareem's. 2000 Shaq has a higher box creation and passer rating than 1977 Kareem in the regular season, and although Kareem's box creation overcomes Shaq's in the playoffs, his passer rating stays behind. While Kareem is certainly underrated as far as gravity goes, Shaq is usually considered the gold standard for big man rim gravity, drawing the double team and kicking back out to three pointers. I see this as a major driver of Shaq's offensive value, and something he has over Kareem (at least in my eye). Perhaps Shaq's benefited from his era, gaining more value than Kareem with his rim gravity and kickout passes simply because he was passing to 3 point shooters?
Well, for once we have to remember that players and teams in the 2000s post considerably higher box creation numbers due to the nature of game. I don't like comparing creation numbers across 30 years, because someone like Shaq had much more opportunities to create something with improved spacing and slower game.
If you compare both BC and PR from team perspective in 1977 and 2000, you'll see that the difference is quite drastic - more so than the difference between Kareem and Shaq. The fact that Kareem is somehow close to Shaq actually proves me with the idea that he's a better passer and playmaker than Shaq.
About Shaq's gravity - this one is a massive game changer, but I wonder how much different it was compared to Kareem. I mean, this is how Kareem was guarded in 1977 playoffs:
Spoiler:
This are not highly selected screens - I picked them from one quarter of game 3 vs Warriors. Kareem absorbed ridiculous amount of defensive attention and he had a harder time beating it without the three point line.
Great points! We definitely have to account for era, and Kareem might be the better passer if we use the "time machine" argument. I also appreciate the footage of Kareem's gravity. Still, I wonder whether Shaq's ability to warp the defense was more valuable in his era, given the increased space and the threat of 3 point shooters. I tend to think so: even if Kareem was attracting as much double teams or defensive rotations, the defense didn't have to rotate as far, didn't have to recover as far, and the offense ended up with a less efficient shot (3 > 2).
I guess here, we end up with the time machine argument. How much do we want to decide the greatest peak based on "goodness" in an era-independent way vs "value" in an era-dependent context.