Daria leads "achAT's Vogue cover model race 2009" with 6 covers, Anna Selezneva and Sasha Pivovarova are 2nd with 4 covers.
According to my statistics Daria had 40 Vogue covers in the 2000s (2000-2009), as many as Kate Moss. This is the third place behind Gisele Bündchen (65) and Natalia Vodianova (52 covers).
My rules for counting Vogue covers can be found here.
achAT-indices : Daria Werbowy's Vogue covers