Since I used My Music at least hundreds of times in Brawl I'm sure the same will be done with this game so any of this can be changed at any moment but this is a generalization of what music I like on certain stages. I don't know how to do spoilers yet so I'll only list a few at a time.
Battlefield/Big Battlefield
Multi-Man Melee theme 2 - Maxed. Grand, legendary, triumphant and I'm glad it's back. Fits way better than MMM 1
Menu (Melee) - 50%. Great rendition of the menu theme which fills the gap of the Battlefield theme from melee.
Boss theme 1 (Brawl) - 25%. I neat rendition of the Brawl theme that wasn't an option in Brawl's battlefield
Final Destination
Final Destination ver 2 - Maxed. Way better than ver 1
Melee Menu ver 2 - Maxed. We already have enough versions of this song but who cares this song is awesome!
Everything from Melee and Brawl minus the credits theme - 25%
Mushroom Kingdom U
Fortress Boss theme - Maxed. An overlooked gem from my childhood getting the awesome treatment it deserves
SMB3 medley - 75%. Classic, nostalgic, it just has to be there.
NSMB ground theme - 50%. Awesome rendition of a song that I always thought was sort've meh
SMB ground/underground theme - 25%- A great rendition of a song we hard zillions of times.
SMB underwater theme - 25%- Great song that gets some shine on a better stage.
Super Mario Galaxy
All various mixes of Maxes and 50% because they are all equally good.
Defino Plaza
Rainbow Cruise- Max. Because why not?
Peach's Castle- 50%. Nostalgic, but not as fitting as rainbow cruise.
3D land theme- 50%. A nice new addition to replace the Mario World title theme I usually had on max.
New Mario Circuit
Cloudtop Cruise- Max. If they remixed any song from Mario Kart 8 I'm sure glad it was this one.
Mario Kart Stadium- 50%. It really captures the MK8 feel.
Rainbow Road MK8- 50%. Where the MK7 RR themes are good at least this RR matches the game of the stage.
Mario Circuit
Everything at max except Mario golf theme
Luigi's Mansion
Everything at max for the most part
Jungle Hijinx
Stickerbush Symphony- Max. Any fan of the DKC series knows how legendary this song is.
DK Rap- Max. Still the only DK64 song? I guess this will do considering it is the freaking DK rap.
Gear Getaway- Max. Because it's a new remix that isn't the DK Island Swing theme.
The two tropical freeze songs- 50%. Definitely not the best songs from TF, but it's still TF and it's the thought that counts.
Kongo Jungle
Kongle Jungle- Max. It's the original classic.
K Rool theme- Max. K Rool, nuff said.
DKCR Vocals- Max. Same reason as gear getaway, and it fits the stage well. Thank you Kenji.
75m
DK Opening- Max. I find it's the only option with any life to it. And boy does it.
Skyloft
Balled of Goddess- (Remix)-Max (Old)- 50%. It's a given considering it's Skyloft and it's Skyward Sword.
The Great Sea- 50%. Reminds me of how there isn't a Wind Waker Stage. Sigh, oh well this will do...
Saria's Song- 50%. It's a nice song.
Gerudo Valley- 50%. I wish this was on Bridge of Eldin instead.
Bridge of Eldin
Anything from ALTP- Max. ALTP hasn't gotten any stages but it sure got two awesome songs to with with the BoE!
Hyrule Field and Twilight field- 50%. They are a given.
Temple
Temple- Max. No description needed.
Great Bay- 50%. Glad this is finally an option considering this song is as old as it's stage.
Gerudo Valley- 25%- Seriously why is BoE the only stage not to have this song?
Song of Storms- 25%. I honestly like this song mostly because of the Ganon tower theme near the end.
Dragon Roost- 25%. Oh Wind Waker how I miss your presence...
Pyrosphere
All Ridley themes- Max. I love them all in their own ways
Parasite Queen- 50%. It feels very Metroid Prime-ish. Which I love
Norfair
Brinstar Depths- Max. This fits way better on Norfair than it did on Brinstar. This fill in the void for the lack of Magmoor Caverns.
Brinstar- 50%. One of my all time favorites in Smash though they cut out the ending to save data for the 3DS.
Yoshi's Wooly World
Yoshi's Island- Max. I loved the rendition in Brawl but this fits in Wooly World better.
Wooly World Remix- Max. This game isn't even out yet and you're making the music in that game look lame in comparison.
Paper Mario Medley - Max. Mainly because of Rougeport. Then it gets to the airship theme with is awkward on Wooly World.
Obstacle Course- 50%. Classic from Brawl, but it needs to be stepped aside for the new remixes.
Yoshi's Story Melee- 50%. I need at least one song from Yoshi's Story in here.
Yoshi's Island
Mario World Medley- Max. I can't tell you how much I love this song. The one does real justice to Super Mario World.
Super Mario Bros 3- 50% A gem from Melee that was toned down for Brawl but is now restored to it's formal Glory.
