Sarah Ferguson and Diana Spencer's wedding dresses were very much of the 80's. Sarah's is the nicest of the two. I would agree with a PP that the dress wore Diana.
I liked Beatrice's dress more than Eugenie's personally - but both suited them.
Princess Anne's original wedding dress is a work of art IMO. It's the small details for me that make it.
Catherine's dress was lovely and fitted her to perfection. It really stood out at compared to what was popular in wedding dresses at the time. Lace was only starting to make a comeback. Not keen on her evening dress.
Meghan's was OK. I loved the idea of it, and I can see what the silhouette was trying to achieve, but the execution didn't quite reach it. The fabric was too heavy, and the fit was just off, especially on the torso & neckline. Her evening dress was perfection though, again fit not quite right (maybe she lost more weight than planned?), but the fabric and cut were more forgiving.