I've seen all of these three movies.
Tim Burtons Corpse Bride was horrible, an utter disappointment. Only because it was Tim Burton did that film even get nominated for an Oscar.
Wallace and Gromit was entertaining, but it was a really kiddy movie. Some of the humor was hilarious, but it had all of the stupid kids' movie cliches and weaknesses.
Howl's Moving Castle should win this one. The animation is way above the other three IMO, and it actually felt like a movie all age groups could enjoy.