Tokyo Disneyland and Tokyo Disneysea are awesome. Definitely worth a trip!
HK Disneyland is the smallest 'Magic Kingdom' park, but it's new and fresh, and while many of the rides are duplicates of other parks, they are improved versions. The shows, parades, and fireworks are very good! They are missing some standards (Haunted Mansion, Splash Mountain, PotC, and Big Thunder). But they are currently expanding the park, and Hong Kong (and Macau) are very much worth a visit in their own right.