Help! is very different from AHDN. AHDN was like an artfilm, but Help! was more like an Elvis-film. I liked AHDN better, especially the Can't Buy Me Love part, with all four running around like crazy.
But Help! is pretty funny too. Think about it, Ringo has a ring and therefore has to be sacrificed, and they end up in Austria and the Bahamas? Yeah right. I think it's a bit Pythonesque.
In the Anthologybook John said that while shooting Help! they were always completely stoned. Next time I see the movie, I'm going to pay attention to that[:D]!