The Beatles pin is my favorite music pinball machine. I like Foo Fighters music, but I would prefer a Van Halen pin. Zeppelin was my dream music pin and it's ok. The giant spinner gizmo is kinda cool. I like the flow on it and the multi-balls, but I don't feel like I'm accomplishing anything when I play it. I like the well defined modes on the Beatles and I'm fine with the improved Seawitch layout.
There are a bunch of music pins that I haven't spent much time playing. Aerosmith, Iron Maiden, Metallica, AC/DC, Stern Kiss, Stern Rolling Stones, Elvis, Rush. Out of those, I think the layout of Iron Maiden is the most interesting, but I don't like the music or satanic/egyptian stuff. I can see how an Iron Maiden fan would absolutely love it. Seems like they captured the theme well.
I need to spend more time on the music pins to see if I actually like them.