Fast Ferry, one of the main differences between the stock Classics, Classic Antiques, and Standards is the pickups. Respectively, they are as follows: 496R/500T (Classics), 57/57+ (Classic Antiques), and Burstbucker Pros (Standards). As far as aesthetics, most of the recent Classics will tend to be plaintops whereas the Classic Antiques and Standards have flame maple tops. All three have binding on the top and fretboard, but the Classic Antique takes it around the headstock as well.
Here's another shot of a Classic Antique - Fireburst. Good luck in your hunt.