MET is my favorite.

My top game before that was Tron. Top before that was TZ.

ACDC is also very high on my list...would probably be my desert island pin behind MET. I have the Pro...you can always put the sexy devil lady sticker over the Angus face. It plays faster than the premium, and is almost half the price.

If you want something with shorter games than MET choose: Iron Man...though the code isn't nearly as deep or nuanced.

If you want something with longer games than MET choose: Game of Thrones. Code is very deep and nuanced, although the story of each game tends to follow the same arc, but perhaps in a different order each time. (Whereas with Metallica you can go down completely different paths).

They don't feel similar at all. Aerosmith layout feels more like Kiss. Aerosmith is entirely mode based...shoot different lit shots until it ends (with some other stuff on top of that), whereas the tasks in Metallica are much more varied, independent of one another, and can be combined in more interesting ways beyond the "make sure you have a mode running, and then add something to it" gameplay of Aerosmith.

That said, I have enjoyed Aerosmith a lot, but you're asking me to compare it to my top game of all time.