Really hard question.
Jefferson is terrible in the pick n roll.
Boozer's man defense and overall defensive awareness is just as bad.
I would say pretty even. I think Jefferson is easier to expose though, because so many teams really excel at the pick n roll.
I meant to vote for Boozer. I thought the question was "Who is worse..."
Should be tied up at 13 a piece. My bad.
I honestly feel that Boozer is a better defender then Al Jefferson. Al Jefferson might be the worst defending big man I have ever seen. The Spurs are totally exploiting this and it is sad to watch.