Other than Hakeem (10th all-time in steals, the only center in the top 60), I can't think of anyone else who compares.He gets more tipped balls and disrupted handles on little guys than I've ever seen from a center. His hands really are impressive.
Then again, for most of NBA history Rob would've played power forward, and there are a few of those high up on the all time list (most notably Garnett).