Who is the best US junior tennis player?

Arguably the youngest best player is Perry Gregg who won the Little Mo US Nationals Boys 9 division on October 19th, 2009 at the Austin Tennis Academy in Texas. Perry advances to the Little Mo Internationals in Port Saint Lucie, Florida, in December as the #1 seed. He won the Little Mo US Nationals Boys 8 in Austin last year. Perry is on the Tennis Channel Academy, Robert Lansdorp episode -- selected by Lansdorp as the "youngest best boy player he has ever seen". Boys ahead of him here are a year older http://www.tennisrecruiting.net/player.asp?id=629353 .

P.S. Murphy Jensen's keynote speech at the event mentions him http://www.YouTube.com/watch?v=doXDDymz6KI .