Here's some data to aid in the Protection debate. I compiled, from Retrosheet (bless their souls), every Phillies PA from 2006. What's shown below (available here as a PDF, and here as an HTML file) is every Phillies batter, their 2006 composite line, and their line broken down by "protector" for everyone who followed them in 2006. If there's interest, I'll post each person's "protection" stats - basically a re-sort of this data to show how every they PROTECTED hit. Without further ado....
Protection: What the numbers say