I like #1 the best, though it is a bit washed out. Maybe next time do a head shot of her looking out the window? Are you using a flash in #3 or is it just the natural lighting?
While 1 looks ok, I am not wild about them, I think its the composition and lack of proper lighting, also in 1, her face doesnt seem to be the main focus, but there is some sunlight hitting her face, which doesnt help the focusing.