Just call everyone in the class “Valedictorian”...
That way no one has hurt feelings.
From 2003
“More public high schools dropping class ranking”
“Research by City University of New York sociologist Paul Attewell supports their arguments. His 2001 study shows that, except for those graduating at the very top of their classes, students at academically rigorous high schools were rejected by Ivy League schools even though their academic credentials were well above the median score of students admitted from less challenging schools.”
http://usatoday30.usatoday.com/news/education/2003-01-27-class-ranks_x.htm
I bet it’s more important now to be a minority than a valedictorian.