Over-the-top and outrageous has a place in our hearts, but we need to be in the mood for it. What always seems to hit right is design that combines a certain restraint with sumptuous details: material richness, attention to composition, elegance of form. Three of the best collections we saw at New York Design Week — from Sunfish, Nicholas Obeid, and Gregory Beson — do just that: Not too much, but still refreshing and surprising; a little asymmetry, an unusual but just-right choice, or a wow-inducing flourish.