A little quick and dirty comparison for Warriors fans...
Biedrins / Noah career per 36
12.1 / 11.4 pts
.603 / .563 ts
12.2 / 11.5 reb
1.6 / 2.1 ast
1.9 / 1.8 blk
1.7 / 1.9 tov
(24.1 / 24.8 minutes per game)
It should also be noted that Biedrins' career numbers are depressed slightly by the fact that he came into the league at age 18, where Noah was 22 as a rook.
Biedrins is also over a year younger, and (for people who care about such things) about 10-15 lbs bulkier.
Noah's probably a better defender, but at what point can we dispense with the silly notion that Biedrins, at 4/$36M, is overpaid?