I selected 3 of the most classic and sophisticated designer's I enjoy; Ralph Lauren, Carolina Herrera, and Oscar de la Renta. And for the record if I was going, I'd pick one of these...here are my choices from all 3 designer's spring 2009 collection.
model Toni Garrn in Carolina Herrera
model Jessica Stam in Carolina Herrera
model Jourdan Dunn in Oscar de la Renta
model Jacquetta Wheeler in Oscar de la Renta
How much do you know about ball gowns? Play the Inaugural ball gown quiz here.
Source: style.com; cnn.com