i really like the dk music in the game, and i also really enjoy listening to banjo, kirby and xenoblade music. sonic and mario are close honorable mentions.
Depends on what this is based on, if it's based on it's the music for the franchise in general, then I feel Sonic is a clear winner. If it's based on the franchise's representation in Smash, then that's a little harder, Smash often fails to represent the best of each franchise. I'd probably choose Fatal Fury/SNK, as King of Fighters Stadium is the stage I choose for the music the most often.
looking at the tracks i have downloaded i think i have a pretty clear bias
2 smash 15 mario
3 mario kart
3 dk
1 zelda
2 metroid
5 yoshi
6 kirby
1 starfox
2 pokemon
2 f zero
3 earthbound
1 g&w
1 wario
3 pikmin
4 animal crossing
1 wiifit
1 splatoon
1 pacman
1 bayonetta
4 castlevania
7 other
(none of the dlc tracks because i only have plant)
as for hte song quality? i dont know i havent listened to these in quite a while
No, Just because I main Mario doesn't mean I automatically like him music
I just feel like Mario games. Especially the RPG's have a lot of thought out into their music.