Universal Studios, Orlando

Universal Studios Orlando is THE destination Harry Potter theme part. It has two key elements that the Hollywood theme park lacks — Diagon Alley and the Hogwarts Express ride connecting it to Hogsmeade. Though more convenient for East Coast fans, it is the best place to go for the complete Harry Potter immersion experience. Depending on your interests, both the Orlando area and greater Los Angeles offer many other attractions. [My Hollywood tips apply here too.] I think the best time to visit Orlando is in mid November — cool, bug free, the end of Hurricane season (almost), and not crowded.