I like Scooby-Doo and Guess Who because it has modern celebrities that I know about, and I didn’t know any of the celebrities in The New Scooby-Doo Movies.
So far, I'd vote the New Scooby Doo Movies. Guess Who is fun, but I haven't liked all the episodes or guest stars. I'm a bit of an old TV fan, so I loved all the old timey celebrities/guests on the Movies.