Letizia has a lot of horrible and utterly boring outfits under her belt. The black leather culottes with the massive silver zipper right across her crouch was by far the worst. I think her best look was her white suit for the engagement announcement.
Mary has the business look down but it’s so ordinary that she doesn’t stand out often and I think Maxima really can do both- business professional and bold (love how she brings out all the royal bling). She is the only one that is doing it really well in my opinion.
I think Kate has worn this hat before and I think she looks generally best in jewel tones and the classic British royal stuff. Those cuts give the illusion of curves and balance out her torso/leg ratio. And while those clothes are rather old fashioned, they make her look younger, fresher and more sophisticated than her more trendy stuff which make her look extremely thin, old, frumpy and disproportionate. It’s fascinating because you would think it should be the other way round.