Hollinger's rankings are no more valid than any informed opinion. They're just arbitrary stats put into a formula, intended to spit out a supposed "unbiased" set of rankings. Whatever.
Personally, in relation to sports, I have very little use for stats. I believe informed, knowledgeable, opinion based analysis is more accurate.
I will say this though, Hollinger is no fool. He is knowledgeable about basketball. On the few occasions when he just gives his opinion, he is generally pretty accurate in his analysis. The problem is, he's just too tied to his "stats" overall.
The main thing I take away from his rankings or "PER, is he's just trying to provide a different point of view, that some readers may be interested in. Basically, it's his way of trying to play to a specific audience that is inclined to find this point of view valid. That, and it creates a highly controversial point of debate, therefore generating more viewership for his employer.
I'm guessing you weren't a fan of MoneyBall. You know, the book + movie about how a little statistical analysis trumped 150 years of baseball's "opinion based analysis". There's clearly room for both types of analysis, but saying that opinion based analysis is more accurate is almost certainly false. Unless you think basketball or baseball is an exception?
All that said, you can obviously give a wrong analysis, or put too much weight on something.
PER has it's faults, but I really encourage people to set aside their assumptions and carefully read Hollinger's own explanations of these things. He's quite aware of some of their shortcomings but that doesn't make them less useful than traditional stats. From any sort of statistical point of view, traditional per-game averages were never designed to be good indicators of how good a player is. They're just the easiest to consume.
Your point about readership is valid too. FWIW what I appreciate about Hollinger is that he actually provides a written scouting report for every NBA player which is way more interesting that the PER stats.
Absolutely not a fan of Moneyball. To me, it was nothing more than an over-sensationalized, agenda based "Hollywood" story.
What, exactly, did the Oakland A's ever win? A couple of division titles, and a bunch of 1st round playoff exits. Big-whoop!
I have yet to see much substantial evidence that statistical based scouting or player analysis is any more effective than traditional means. I will always believe the "eye test" is more effective.
Another example of an over-hyped GM who follows in this mold would be Daryl Morey. People somehow claim him to be this sort of savant, yet what has Houston won?
Anyway, now that I've ranted, I'll still give credit where it is due. As I stated before, Hollinger
IS knoledgeable about basketball. He just has an agenda, and pushes it for his own financial benefit. I won't fault him for this.