Which gown should I wear to the Oscars?

Not that I'm going, but a girl can dream...
And while I don't dream of winning for Best Actress, I do dream of a nomination for Best Writing (adapted screenplay). Of course I still have to write said novel that is Oscar worthy. But I have a plan...of sorts...meanwhile I can have fun picking out the dress. So help a girl out... which dress should I wear to the Academy Awards?