We've sailed in all four and to be honest, they're all fantastic. Yes, there are bits that are bothersome (the comment about concierge proximity to the adult area on the Dream class is spot on), but the differences are usually great in their own way. We love the AP shows on the Magic/Wonder, but prefer the pool deck layout on the Dream/Fantasy. We love the cosyness of the Magic/Wonder, but also love the expanded size of Cabanas on the Dream/Fantasy (remember when it was Beach Blanket Buffet on Magic/Wonder?). Our kids love the proximity of the Edge on Magic/Wonder, but like the hot tub on Dream/Fantasy. There are very few things that we 'dislike' about the ships; they're just different. All four are beautiful, all four have areas they excel at while are just 'acceptable' otherwise.