I think Bynum would trash Al, too.
There is no good reason for a team to want Al Jefferson unless it's a middle-of-the-pack team trying to woo fans with fool's gold.
That said, I really like him, but I've always been a sucker for post players since growing up on McHale. The new defense rules provide a stronger foil to post play, though, as the league has gone to celebrate the wings and guards (hand checking, restricted area, etc.).