These stats also don't take into consideration the fatigue factor involved. Will Smith plays the whole game while guys like Andersen and Dumerville come in with fresh legs and takes advantage of going against fatigued players. Its not fair to compare.
Basically, its an unfair comparison. Put Will Smith on the Ravens, or Bears, and I guarantee you his "stats" would go up. His sack totals would definately be higher. Its no coincidence that Pryce's #s shot up after he left Denver. He has alot more help in Baltimore compared to Denver. Metrics dont factor that in.