I feel like a lot of people's opinions on Shaq are low because of how Perk and Sheed guarded him in the playoffs. The same can be said of Jermaine O'Neal.
People need to realize that not many teams have a player of Perk's caliber when it comes to defending strong players in the post. People realize that Dwight Howard is a lot better than he showed against Perk, I'm not sure why the O'Neal brothers don't get the same benefit of the doubt.
By the same token those who are in favor of Shaq and are comparing him to Perk are greatly under rating just how much better Perkins is defensively than Shaq is.
Perk is one of the three best in the paint low post defenders in the league and with the exception of Andrew Bogut, he can guard any big man one on one in this league.
Also, Perk's ability to challenge(blitz) on the pick and roll and still be able to get back to thwart the inside pass and defend is way, way, way better than Shaq's. Perkins help defense, when he is healthy is excellent.
So yes, Shaq is better than Perk offensively and when looking at how Shaq and JO performed against the Celtics it should be mentioned that they were playing a team that was playing DOMINANT defense. But let's please stop with the talk that Shaq can hold Perkins jock when it comes to the type of defense that this team needs to be successful in the playoffs because Shaq is just incapable of playing that type and style of defense that Perkins excels at.