I would choose:
Victoria and Daniel
Frederik and Mary
Willem-Alexander and Maxima
Victoria and Daniel's wedding was so very special and has to take top honours. It was just so darned romantic and watching online it just sucked you in like you were there. They made a state occasion seem like a wonderfully close family wedding. They didn't just share their wedding with us, they shared a peice of themselves. There were so very many tears, both from Victoria and Daniel and from the guests. So much emotion, tears, laughter and joy. Fabulous speeches by the King and Prince Daniel (who is not quite a frog), not to mention an unforgetable wedding waltz.
Frederik and Mary's wedding was beautiful in a different way. They were a couple that seemed to have really put in the hard yards to actually be allowed to get married. Every step was coreographed brilliantly, from the explosion of pinks in the Cathedral to the carriage ride and reception. Their joy was sweet and their wedding dance, romantic. And the Danes wept and laughed with them. Today Mary the fashionista smiles at Frederik who is marching to the beat of a different drum.
Willem-Alexander and Maxima's wedding was beautiful and like V & D and F & M, they too had put in the hard yards, albeit for different reasons and the emotional Maxima showed what the Netherlands had to look forward to. A Crown Princely couple where the upstanding and overly serious WA was given a chance to be who he really is. As the repatriation of bodies from an act of terror proceeded, Willem-Alexander was a staunch King and stood for his fellow countrymen, Maxima, his Queen, the fulfillment of the promise of their marriage. She wept for all those who could not.
I love that it is possible to look at weddings from the distance of years and find that they have all fulfilled their promise. Their marriages are scandal free (slime notwithstanding), loving couples, adoring parents and well respected royal representatives of their countries. No two couples are the same because each individual is different and their challanges are also vastly different. But they have all arrived at the same place.