On the surface, Twilight Saga actress Ashley Greene and Real Housewife of Orange County Gretchen Rossi have little in common. The former is a young actress on the rise. The latter is a spoiled, talentless reality star. But let's look deeper. Both also share a taste in fashion, as they were each spotted out recently in a gold Gryphon shift dress. The New Moon beauty covered hers with a trench…