The NBA's Top 10 Point Guards

Presented below are three-year averages of adjusted plus-minus for the NBA's point guards. I rank the top 10 then mention some other notable names that didn't make the Top 10.

1. Steve Nash, +8.52
2. Baron Davis, +7.32
3. Jason Kidd, +7.25
4. Allen Iverson, +5.51
5. Chris Paul, +4.89
6. Jason Terry, +4.64
7. Nate Robinson, +4.00
8. Chauncey Billups, +3.85
9. Devin Harris, +3.17
10. Tony Allen, +2.51

Other Notables: Rajon Rondo, +4.00 (not included due to only 2 years in the league), Tony Parker, +1.86, Monta Ellis, +1.83, Andre Miller, +0.58, Deron Williams, -0.67, Mo Williams, -1.36, Kirk Hinrich, -2.11, TJ Ford, -2.53, Jose Calderon, -3.49, Mike Bibby, -3.58

I believe that this list shows both the advantages and pitfalls of adjusted plus-minus. There can be no doubt that Nash, Davis and Kidd have been a cut above the rest of the NBA's point guards, posting consistently high numbers over the last 3 seasons. Yet the relatively low rating of players like Chris Paul, Tony Parker, and Deron Williams might arouse skepticism. Personally, I suspect that Paul's rating should be somewhat higher, but looking at the breakdowns into offense and defense handily provided at countthebasket, it is my guess that although Paul and Nash are probably the two best offensive point guards in the game, Paul's defense is even more of a liability than Nash's and thus keeps him from joining the top 3 (for now, at least).

As for some other ratings of note, adjusted plus-minus pinpoints the Spurs' success as being primarily dependent on Duncan and Ginobili - Parker has been a winning player, but not a great one. Deron Williams' three-year average is low because of a poor rookie season; nonetheless, his rating of +2.0 over the last 2 years is still outside of the top 10 - we will have to see if this trend continues as he matures. Pretty much every other star PG who rates as a losing player (Williams, Ford, Calderon, Bibby) are there due to their defensive liabilities. From this analysis, the offensive advantages enjoyed by the Raptors from employing both Ford and Calderon were more than offset by the two getting lit up on defense.

What have we learned from this set of ratings? Point guard is the top offensive position but also the weakest defensive position in the NBA. Thanks to countthebasket.com, we can see the splits for each player (for 2008, at least). Some point guards really get killed on defense and this makes them much less valuable than their box score statistics would indicate. In the case of Steve Nash, his defense doesn't sink his rating like it does Chris Paul's but it does lower it enough that he probably wasn't the MVP in 2005 or 2006 although he was arguably the top offensive player in the league. The greatest value of adjusted plus-minus is what it tells us about individual defense, and when it shows consistent ratings over a multi-year period. Its downside of course, it its high standard errors but I believe that presenting 3-year ratings like this offsets a lot of that bias.