JO is sheed from last year if sheed didnt suck 
Sheed didn't suck in the playoffs.
Sheed did play very well in the playoffs. He did not seem to play well during the regular season though - save for a few games.
As for the JO-Perk comparison? I am loving what JO is bringing to us. Yes - he could rebound better, as others have mentioned here in the thread, but even with that I believe he'll get better as he rounds himself into playing shape. Doc seems to be getting more and more comfortable with him which is a good thing.
The beauty of JO being our center right now is that as I watched the Celtics game last night, he seemed to move so fluidly in the defense and offensive sets...he, for maybe the first time since he's been back - just seemed one with the team on the floor. That, is most important to me, because Jermaine O'Neal becoming comfortable with our O and D can only mean more eventual production from him and more difficulty for our opponents.
As many here have already mentioned, Perk does appear to be a better rebounder than JO - at least right now. Perk is also younger than JO. I thought the C's were disadvantaged late in games when Doc would take Perk out, though.
As for Perk's defense - like others have mentioned here, he did not play mobile centers well - BUT: In that OKC - LA game late in the season, I was most impressed with Perk as he guarded Lamar Odom on one play. Lamar tried to drive around him from the top of the key and Perk played him well and did in fact block it out of bounds.
Perk is getting his mobility back, which I'm happy for.
I'm just glad that both are playing well for their teams.
A perfect scenario is that OKC beats LA and meets Boston in the finals....at that point we all know that Perk must be defeated, right? I will be cheering voraciously for every Perk moving screen, personal foul, missed free throw - you name it.
