I do prefer Elizabeth as Esme than as Ava/Rebecca in Grey's Anatomy. I just think that the role of Esme is better suited for her than what the role in Grey's is. She plays a much younger character in Grey's and i think that playing an older, motherly figure suits her better. Unfortunatly i'll never be able to watch the episodes of Grey's with her in again without wanting to scream, 'IT'S ESME!!!' Especially the ferry crash episodes!