It all depends on the scale. Is 100 a perfect player beyond any we've ever seen and 0 a turnip?
Is 50 an average player?
I know, I'm over thinking it. I'll make my own scale.
Garnett - 91
Pierce - 89
R.Allen - 85
Rondo - 80
Perkins 72
Powe - 58
T.Allen- 57
House - 57
Scalabrine - 45
Pruitt - 44 (incomplete)
Davis - 44