I hate the Lakers as much as anyone, but give them some credit. Saying we're better than them at every position is ridiculous. Ray over Kobe? Maybe for our team, and what we do, but Kobe is one of the greatest ever, and overall a better player. The way I see the position matchup against LA is this.
Rondo > Fisher
Ray < Kobe
Pierce > Artest
KG = Gasol (KG has better defense, but Gasol is a better rebounder and offensive player at this point in both players career)
Shaq / JO < Bynum (If Bynum plays up to what he's capable of, he's better than either JO or Shaq at this point, but not by much)
Baby < Odom (Although I feel like Doc might utilize Green more against Odom, which is a closer matchup.)
Rest of Bench I think the Celtics destroy the Lakers.