Who Has The Best Defense?

More photos » by Larry W. Smith - AP Superman defends the paint quite well. Browse more photos » Two years ago, the Celtics won the championship mostly because they had the best defense.  The Spurs won several titles largely because of their defense.  The biggest difference between the Lakers of 2 years ago and the Lakers of last year was... you guessed it, defense. All of the top contenders boast good to great defenses.  All the top contenders made changes this offseason.  So it is worth a review of the competition and make a case for which team has the best defense (and thus perhaps the best shot at the title). Understand first of all that there are no good defensive statistics (that I know of).  Stats are by nature flawed, but useful in context and they give us a good frame of reference to start from...