ZAGATSURVEY Food - 27 Decor - 23 Service - 26 Cost - $51 "Why did Georges Perrier ever let this man leave?" puzzles foodies who find Le Bec Fin alum Peter Gilmore's French cuisine "as imaginative" as it is "spectacular" when they celebrate "special occasions" at his "adorable" BYO in West Chester; "warm" staffers are "excellent" as well.