One of the most popular (and easiest to find) leaderboards is HR leaders.  But that combines HR in hitter’s parks, pitcher’s parks, and everything in between.  Baseball Info Solutions collects the HR distance as well.  The Bill James Handbook 2006 plans to add a bunch of new leaderboards and one of them is “Longest Average Home Run Distance”.

You might expect the HR leaders to show up in the HR distance leaders.  That is not what we are seeing right now (as of Wednesday, August 10, 2005).  The top five HR distance leaders in each league don't include anybody that is in the top five for HR, even when expanded to show the ties.

      Longest Average Home Run NL Leaders (minimum 7 HR)

Wily Mo Pena	406
Russell Branyan	402
Tony Clark	401
Mike Piazza	401
Mike Cameron	399
Bill Hall	399
Brad Hawpe	399
Matt Holliday	399
Adam LaRoche	399
Jim Thome	399
Larry Walker	399

   
Just for the record, the current NL HR leader Andruw Jones has an average of 363 feet in his 37 HR and AL HR leader Alex Rodriguez has an average of 394 feet (tied for ninth place) in his 33 HR.