Fantasyland is a land for kids, or just adults who really are kids at heart. Walt Disney originally designed it as a showcase of many of his animated films. Today almost ever ride in the land is based on one of Disney's many feature films. Unless you have small children or enjoy the short dark rides, Fantasyland doesn't offer much for the thrill seeker.
Tips:
Fantasyland is filled with families all day long. Most of the rides offer lines of an hour or more during the day. If you wish to visit Fantasyland I would recommend the evening hours. Many families have gone home by then and most of the rides have a very minimal wait. The one exception to this is Peter Pan, which seems to always have long lines.