Let the Four C’s fall where they may: Today’s most compelling and progressive bridal retailers place a premium on personalized serviceWalking into the Catbird Wedding Annex in Brooklyn feels a little like stepping into the bedroom of a preternaturally sophisticated teenager, circa 1982. A hot-white neon sign reading Oh My Stars hangs over a curvy-legged vintage cabinet. A crystal chandelier, simultaneously shabby chic and punk rock, teased into the shape of a sailboat occupies the front window. Pictures of iconic counterculture couples, including Keith Richards and Anita Pallenberg and Serge Gainsbourg and Jane Birkin, are tacked casually to the walls with gold pushpins. Vintage-inspired engagement rings—from brands including Satomi Kawakita ­Jewelry, Lauren Wolf Jewelry, and 1909 by Erica Weiner—are displayed in tall, narrow cases opposite an antique hanging mirror border