I think they've brought Omaha back (if it's the map I think you're thinking of). Though I can't recall the name of the new map, off the top of my head. It's always been one of my favorites, but most people's least favorite as the Allies have a real tough time of it, getting off the beach. (Which, of course, they shouldn't...)
My favorite map is Flash, the map depicted in the DoD:S trailer. I used to love Caen, but it didn't make it to the Source version. Other favorite maps are Kalt, Donner, Avalanche, Argentan and Snow Battlefield (a custom map).