I like the style of the nude dress better (it's a bit more simple and elegant, and the white dress is a bit too layered and busy for me on the bottom), but I think the color blends into your skin a bit more. I like the white better against your skin tone. But it's hard to tell with pictures, so you should go with whichever one you feel best in.
That second dress is stunning! And the model, even though squished on the photo format has the figure to pull it off. The first dress ... not so much. First impression was Vegas tart.
Second one for sure, it really highlights the figure and looks elegant. Can you have it made in white if you don’t like nude? The first one looks very heavy and seems to drag the waist down. Were you wearing the right support underneath (the hoops or what you call it for the ballgown skirt).
For the later two photos, I like the short number but the see-through skirt looks cheapl I would swap it out with a full tulle skirt that you can whip off for the dance party. The last lace one is pretty, but I get the feeling you want something with a wow factor.