There's 4 pre-season All-American teams for freshmen, sophomores, juniors and seniors, with 20 honorable mentions for each class as well. There's also a pre-season All-American team regardless of class.
Just because a certain player might be on a higher All-American team than another, doesn't necessarily mean I feel they're the better player. It bolis down to a number of things, but for the most part it's how I feel they might play this upcoming season. Future potential was taken into consideration for some players though. Click names for videos.
Pre-Season All-Americans Freshmen: http://prospect-central.blogspot.com/2012/10/high-school-basketball-2012-13-pre_29.html
Pre-Season All-American Sophomores: http://prospect-central.blogspot.com/2012/10/high-school-basketball-2012-13-pre_7486.html
Pre-Season All-American Juniors: http://prospect-central.blogspot.com/2012/10/high-school-basketball-2012-13-pre_6252.html
Pre-Season All-American Seniors: http://prospect-central.blogspot.com/2012/10/high-school-basketball-2012-13-pre.html
Pre-Season All-Americans Regardless of Class: http://prospect-central.blogspot.com/2012/10/prospect-centrals-hs-basketball-2012-13.html