I'm in the process of finishing my job, packing my house, and moving cross-country over this time period. And it's driving me crazy, because I just can't weigh in on these threads like I'd like. I actually started this particular response this morning when there were only 7 posts in this thread, and now it's likely to be the 100th post overall. Oh well.
I've seen several posts in these threads to the extent that LeBron had a GOAT-level peak, clearly above the Garnetts of the world, that in itself could be enough to make up for others having more longevity. I happen to think that LeBron's thus far has been ridiculous, but as yet I don't see where his best tops KG's best. LeBron's advantage, IMO, comes from having hit his career marks EARLIER than KG did, but to date he hasn't surpassed him yet. I participated in an in-depth thread about this earlier this year (can't find at the moment, will link when I do) but for here let's take a look at the absolute best season from each of them so far. LeBron's 2008-09 and KG's 2003-04. If you really look, I don't see how you can say that there's a clear difference either way. But, I've been wrong before. Anyway, here it is:
Accolades:2009 LeBron: MVP (.969 MVP shares), 1st team All NBA, 1st team All Defense
2004 Garnett: MVP (.991 MVP shares), 1st team All NBA, 1st team All Defense
These were two of the most decorated regular seasons in NBA history, with almost unanimous MVP votes. LeBron's .969 MVP share was, I believe, 5th or 6th best ever while KG's .991 was second only to Shaq's 2000 MVP vote for highest ever. And both were ultra consistent, with '09 LeBron and '04 Garnett as the only 2 players in history to win Player of the Month 4 times in a single season (
http://basketball.realgm.com/wiretap/19 ... Award_List ).
Traditional box score stats: regular season: ’09 LeBron: 28.4 ppg, 7.6 rpg, 7.2 apg, 1.7 spg, 1.1 bpg, 3.0 TO, 59.1% TS
’04 Garnett: 24.2 ppg, 13.9 rpg, 5.0 apg, 1.5 spg, 2.2 bpg, 2.6 TO, 54.7% TS
It should be noted that ‘09 LeBron was second in the NBA in both ppg and total points, and turned in one of the very few 28/7/7 seasons in league history. ’04 Garnett was also second in the NBA in ppg, led the league in total points, and led the league in rpg as well. In fact (double-check me on this), I believe ’04 Garnett was the only player to lead the NBA in both total points and total rebounds since the NBA/ABA merger almost 35 years ago.
Advanced box score stats: regular season’09 LeBron: 31.7 PER (1st in NBA), 20.3 WS (1st), 27.8 Wins Produced
’04 Garnett: 29.4 PER (1st in NBA), 18.3 WS (1st), 30.5 Wins Produced
Once again, LeBron and Garnett dominate the league, going easily first in the main public advanced stats. And again, not a lot to separate the two.
Team Results and Individual Impact: Regular season’09 LeBron: Cavs 66 – 16 (1st NBA), APM +16 (basketballvalue), Cavs 21 points better/48 on court
’04 Garnett: Wolves 58 – 24 (1st West), APM +16 (Winston), Wolves 20 points better/48 on court
Both LeBron and Garnett led their respective teams to the top of the league, with individual impact stats that were off the charts. IIRC, ’09 LeBron and ’04 Garnett posted the second and third highest on/off net +/- for a full season since 82games started keeping the stat. Here you could argue a very slight edge for LeBron, but really, it’d be extremely slight.
Box score stats: Playoffs’09 LeBron: 35.3 ppg, 9.1 reb, 7.3 ast, 61.8% TS, 37.4 PER, 0.399 WS/48
’04 Garnett: 24.3 ppg, 14.6 ppg, 5.1 ast, 51.3% TS, 25 PER, 0.163 WS/48
Finally, we have separation! LeBron blew up the box score stats in the post season, scoring at Jordanesque rates on Shaq-like efficiency with an outstanding All Around game. KG pretty much carbon-copied his box score stats from the season, but at a lower shooting efficiency which led to the lower advanced stats. We have a winner! Or do we?
Team results and individual impact: Playoffs’09 LeBron: Cavs lose in 6 games of ECF, Cavs 11.6 points better/48 with LeBron on court
’04 Garnett: Wolves lose in 6 games of ECF, Wolves 25.7 points better/48 with KG on court
Both teams lost in 6 in their conference finals. For the Cavs, it seemed to be about matchups. Orlando’s frontcourt was just too long and productive for the Cavs to stop, and none of LeBron’s teammates seemed to step up to help him on offense. For the Wolves, it was about injury. Both starting point guards were injured, Wally was playing with fractured vertebrae in his back, and KG was having to do EVERYTHING for his team against the Shaq/Kobe/Malone/Payton Lakers, including running the PG, playing center, and making the popcorn.
Interestingly, despite LeBron’s video game stats in the postseason, his on/off +/- wasn’t as large as it was in previous and future seasons. Garnett, despite his lower box score stats, had a MUCH higher on/off +/- in their respective postseasons. Granted, any one postseason is a relatively small sample size, especially for players that play as much as LeBron and KG. But we are talking 3 full rounds of playoffs (I rarely give much credence to on/off +/- for less than that), and across that kind of time period the numbers can start to show a clear trend. At the least, it’s another data point.
Conclusions: When looking at the absolute best seasons that LeBron and Garnett have put up to date, I just don't see how anyone could say that LeBron peaked clearly higher. From top-to-bottom, from team results to accolades to box scores to impact stats, those two seasons are about as strong and as similar as could be. The only area for potential separation is the playoffs, but while LeBron put up video game numbers Garnett still delivered at least as big of an on-court impact, if not larger (if you believe the postseason +/-). The one thing that the box scores don't measure well is defense, and while '09 LeBron was a great defender, '04 Garnett was at his defensive peak right in the time-period when he was breaking the defensive APM scale in the Ilardi measurement. If anything, to me, this is a draw. I certainly don't see a separation for LeBron that would warrant him being lifted above Garnett in a career-sense solely on the back of their peaks. LeBron's still young and still has time to improve on his peak. But to date, his peak is right there with Garnett's. If LeBron's peak is "GOAT-ish", all that says is that KG's was as well.