I found an interesting link which leads to an article about the PGs of every team in 1988. The author classifed the PG to four different classes. First Class, Second Class, Third Class, and Fourth Class. Of course the First Class are the best and Fourth Class are the worst. Check it out, you'll be surprised who's in the Fourth Class category. And who were considered better than those in the fourth class.
http://www.rawbw.com/~deano/hoopla/pgdr1.html