Super Smash Bros. for Wii U Music Discussion

So I have a lot of fun fiddling with the extra features in Smash Bros., and I especially like My Music, where you can adjust the music that plays in each stage to your liking. I've set-up the slider bars in each stage like this:

●My favourite track - 100%
●Two other tracks - 25% each
●All other tracks - absolute minimum

I mostly picked music which is not in the 3DS version, to make it unique. However, a few stages have music from the 3DS version which I like a lot. How do you pick your music?