Neither is my favorite, but I like 'em both! Mac II looks awesome but the story is meh. I had heard/read other people's comments and seen pics of Mac 7 and wasn't exactly impressed, so I watched everything else first - kinda like saving the worst for last. So when the time came for Mac 7, I went in expecting bad, baaaaad things. Know what though? It's not that bad at all, yes it's quite silly at times but if you accept that, the story gets better as you keep watching. It's definitely good for some laughs. As for the music, if you've ever sat through Minmay's singing in Ripofftech, this is a cakewalk! Give it a shot folks.
cheers